Best For

• Conditioning: High-rep speed sessions.
• Beginners: Mastering basic slam patterns.
• Warm-ups: Movement prep and circuit work.
• HYROX: Targeted functional fitness drills.

Product Details

• Weight: 3KG.
• Material: Sand-filled rubber.
• Texture: Tire-tread surface.
• Valve: Air-adjustable for shape retention.

Visit our Auckland showroom to test our elite gear in person.

GravoMax Slam Ball – 4KG

Overview

The GravoMax Slam Ball 4KG is a versatile entry-level option for explosive conditioning, beginner strength work, and higher-rep training sessions. It gives slightly more resistance than the 3KG version while still allowing good movement speed and control, making it a strong choice for athletes building technique and consistency. This slam ball is suited to functional training, CrossFit-style workouts, and HYROX-focused conditioning where repeatable slams, clean transitions, and stable handling are important.

Why choose the 4KG slam ball

The 4KG weight is ideal for users who want more challenge than a light warm-up ball but still need a manageable load for controlled reps. Therefore, it works well for technique progression, conditioning circuits, and mixed training blocks where speed and posture need to stay consistent.

It is also a practical option in shared training spaces, because coaches can use it for movement prep, timed intervals, and beginner-to-intermediate slam ball progressions without jumping too quickly into heavier weights.

• Balanced 4KG resistance for progression and control
• Great for beginner to intermediate users
• Suitable for circuits and repeated slams

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps control rebound after impact and makes it easier to reset quickly between reps during conditioning sessions.

In addition, the tire-tread texture improves grip during overhead slams, front-loaded drills, and rotational movements, helping users maintain control during fast-paced training.

Best for

• Beginner to intermediate slam ball training
• Conditioning circuits and interval sessions
• Technique progression with controlled resistance
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 4KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 5KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 5KG

Overview

The GravoMax Slam Ball 5KG is a practical all-round option for explosive conditioning, strength-endurance work, and everyday gym training. It adds a clear step up from lighter beginner weights while still allowing good control for repeated slams, making it a strong choice for users building power and consistency. This slam ball is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where stable handling and repeatable impact performance matter.

Why choose the 5KG slam ball

The 5KG weight is a great progression point for athletes who are ready for more resistance but still want to keep speed and form through high-rep sets. Therefore, it works well for conditioning circuits, partner training, and mixed workout blocks that combine slams with carries, squats, or core movements.

It is also one of the most versatile weights for shared training spaces, because it can be used for beginner progression, general fitness programming, and fast-paced conditioning without feeling too light or too heavy.

• Versatile 5KG resistance for progression and daily training
• Good balance of speed and load for repeated slams
• Suitable for circuits, intervals, and conditioning blocks

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps limit rebound after impact and keeps transitions cleaner during repeated slams and high-tempo conditioning work.

In addition, the tire-tread texture improves grip during overhead slams, front-loaded movements, and rotational drills, helping users maintain control even during faster sets.

Best for

• General slam ball training and progression
• Conditioning circuits and interval workouts
• Strength-endurance and full-body training
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 5KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 6KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 6KG

Overview

The GravoMax Slam Ball 6KG is built for athletes moving beyond light conditioning into more demanding strength and power work. It adds a noticeable step up in resistance while still allowing controlled reps, making it a strong choice for users developing explosive movement, timing, and full-body coordination. This slam ball is well suited to functional training, CrossFit-style workouts, and HYROX-focused conditioning where stable handling and repeatable impact performance are important.

Why choose the 6KG slam ball

The 6KG weight is ideal for athletes who want a more challenging load without sacrificing control during repeated slams. Therefore, it works well for strength-conditioning circuits, explosive intervals, and mixed training blocks that combine slams with carries, squats, and core work.

It is also a practical upgrade for users progressing from 4KG or 5KG, because it increases resistance enough to feel more demanding while still staying manageable for consistent technique and volume.

• Progressive 6KG resistance for strength and power training
• Good balance of load and control for repeated slams
• Suitable for circuits, intervals, and full-body conditioning

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps keep the ball grounded after impact so users can reset quickly and train with better rhythm during conditioning sessions.

In addition, the tire-tread texture improves grip during overhead slams, front holds, and rotational drills, helping maintain control through fast-paced and high-volume training.

Best for

• Strength-conditioning progression
• Explosive slam ball intervals and circuits
• Full-body power and core training
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 6KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 7KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 7KG

Overview

The GravoMax Slam Ball 7KG is built for athletes who want more resistance and a stronger power-training feel without jumping straight into heavy advanced weights. It adds a clear step up from 5KG and 6KG, making it a solid option for explosive conditioning, strength-endurance work, and controlled high-impact training. This slam ball is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where grip, repeatable slams, and stable handling all matter.

Why choose the 7KG slam ball

The 7KG weight is a strong progression point for athletes who are ready to push power output further while keeping good control through repeated reps. Therefore, it works well for full-body conditioning circuits, explosive intervals, and mixed training sessions that combine slams with squats, carries, and core movements.

It is also a practical choice for general gym programming, because it gives enough resistance to feel demanding while still staying manageable for technique-focused training and consistent volume.

• Progressive 7KG resistance for power and conditioning
• Good for strength-endurance training and repeated slams
• Suitable for circuits, intervals, and full-body sessions

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb impact and keeps the ball controlled after each rep, which is important for smooth transitions during high-tempo conditioning work.

In addition, the tire-tread texture improves grip during overhead slams, front holds, and rotational drills, helping maintain control even when hands are sweaty during longer sessions.

Best for

• Intermediate slam ball progression
• Explosive conditioning and interval training
• Strength-endurance and full-body power work
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 7KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 8KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 8KG

Overview

The GravoMax Slam Ball 8KG is a strong mid-range option for athletes who want to build more power while keeping clean control and stable movement. It adds enough resistance to challenge strength and core engagement, while still allowing repeatable reps in fast-paced conditioning sessions. This slam ball is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where explosive effort, grip security, and non-bounce control all matter.

Why choose the 8KG slam ball

The 8KG weight sits in a practical range for athletes who want a clear strength-conditioning challenge without moving into heavy advanced loads too early. Therefore, it works well for overhead slams, rotational drills, and compound conditioning blocks that demand power, timing, and full-body coordination.

It is also a useful “bridge” weight in programming, because it helps users progress from lighter technique-focused balls into more demanding power work while keeping movement quality consistent.

• Balanced 8KG resistance for functional strength progression
• Strong mix of power and control for repeated slams
• Suitable for rotational drills and conditioning circuits

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb impact and keeps the ball stable after each slam, which supports safer and smoother transitions in high-rep training.

In addition, the tire-tread texture improves grip during overhead slams, front-loaded movements, and rotational work, helping users maintain control through demanding conditioning sets.

Best for

• Intermediate to advanced slam ball progression
• Explosive conditioning and power circuits
• Rotational drills and core-focused training
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 8KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 10KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 10KG

Overview

The GravoMax Slam Ball 10KG is a strong step into heavier slam ball training for athletes who want more resistance without losing control. It is heavy enough to challenge full-body coordination and core stability, but still balanced enough for repeatable reps in conditioning work. This weight is a practical choice for functional training, CrossFit-style workouts, and HYROX-focused sessions where power output, grip, and movement quality all matter.

Why choose the 10KG slam ball

The 10KG weight sits in a very useful range for strength conditioning. It gives enough load to build real power and muscular endurance, while still allowing dynamic movement patterns such as overhead slams, rotational work, and full-body conditioning drills.

It is also a strong option for athletes progressing from 8KG, because it increases resistance in a noticeable way while keeping training versatile for both strength-focused and conditioning-focused sessions.

• 10KG resistance for strength and conditioning progression
• Good balance of force and control for repeated slams
• Suitable for explosive drills and full-body conditioning

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb impact and keeps the ball controlled after each rep, which is important for smoother transitions during high-volume training.

In addition, the tire-tread texture improves grip during overhead slams, wall-facing drills, and rotational patterns, helping maintain control when training intensity increases.

Best for

• Strength-conditioning progression
• Explosive slam ball circuits and intervals
• Full-body power and endurance training
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 10KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 12KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 12KG

Overview

The GravoMax Slam Ball 12KG is built for athletes who want more than basic conditioning and need a stronger slam ball for serious training output. It adds meaningful resistance for explosive movement while still allowing controlled reps, making it a strong choice for strength-endurance work and full-body conditioning. This weight is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where power, timing, and grip control need to stay consistent under fatigue.

Why choose the 12KG slam ball

The 12KG weight sits in a strong range for strength conditioning and explosive training. It is heavy enough to challenge output and muscular endurance, but still manageable for repeated slams, rotational work, and mixed conditioning drills when technique matters.

It is also a practical upgrade for athletes progressing from 10KG, because it increases resistance without forcing a complete change in training style. That makes it useful for structured progression in home gyms, PT studios, and commercial gym programming.

• 12KG resistance for stronger power output and conditioning
• Suitable for repeated slams with controlled movement
• Good for progression from mid-weight slam balls

Grip and construction

The ball uses a dense rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb force on impact and keeps the ball grounded after each slam, which supports safer and more efficient conditioning sessions.

In addition, the tire-tread texture improves grip during overhead slams, rotational drills, and front-loaded movements. The heavy-duty outer construction is built to handle repeated impact in high-use training environments.

Best for

• Strength-conditioning progression
• Explosive power and endurance circuits
• Repeated overhead slams and rotational drills
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 12KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 15KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 15KG

Overview

The GravoMax Slam Ball 15KG is built for athletes who want heavier slam ball training with strong resistance and stable control. At this weight, each rep demands full-body engagement, making it a practical choice for explosive strength work, high-output conditioning, and serious training progression. This model is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where power, grip, and repeatable movement quality need to hold up under fatigue.

Why choose the 15KG slam ball

The 15KG weight is a strong choice for strength conditioning and advanced progression. It delivers enough load to challenge power output and muscular endurance while still allowing controlled, repeatable slams in structured training blocks.

It is especially useful for athletes moving up from 12KG who want a more demanding training stimulus for explosive conditioning, core-driven movement, and full-body strength-endurance work.

• 15KG resistance for heavier power and conditioning work
• Suitable for advanced progression from mid-range weights
• Built for repeated slams with controlled movement quality

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb impact and keeps the ball grounded after each rep, which supports safer and more efficient training during high-intensity sessions.

In addition, the tire-tread texture improves grip during overhead slams, front-loaded holds, and rotational drills. The heavy-duty outer construction is designed to handle repeated high-impact use in both home and commercial training environments.

Best for

• Advanced strength-conditioning progression
• Explosive power and endurance circuits
• Heavy slam intervals and repeated power reps
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 15KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 20KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.

GravoMax Slam Ball – 20KG

Overview

The GravoMax Slam Ball 20KG is built for athletes who want heavy slam ball training with serious resistance and full-body demand. At this weight, every rep challenges strength, coordination, and endurance at the same time, making it a strong option for explosive conditioning and advanced training blocks. It is well suited to functional training, CrossFit-style workouts, and HYROX-focused sessions where power output, grip security, and movement control must stay consistent under fatigue.

Why choose the 20KG slam ball

The 20KG weight is a high-resistance option for strength conditioning and advanced power development. It is ideal for athletes who want heavier overhead slams, loaded conditioning work, and stronger core engagement without moving to rigid free-weight-only training.

It is also a practical choice for coaches and serious training spaces that need a heavy slam ball for progression, because it adds a demanding load while still supporting explosive movement and repeatable reps.

• 20KG resistance for advanced power and conditioning work
• Suitable for heavy slam intervals and strength-endurance sets
• Built for serious progression in functional training

Grip and construction

The ball uses a durable rubber shell filled with sand for a non-bounce slam ball feel. This helps absorb force on impact and keeps the ball grounded after each slam, which supports safer training and cleaner transitions during heavy conditioning work.

In addition, the tire-tread texture improves grip during overhead slams, rotational drills, and loaded carries. The heavy-duty outer construction is designed to handle repeated high-impact use in demanding home and commercial gym environments.

Best for

• Advanced strength-conditioning progression
• Heavy explosive slam ball training
• Power-endurance circuits and HIIT blocks
• Functional fitness and HYROX-style training
• PT studios and commercial gym conditioning zones

Product details

• Weight: 20KG
• Material: Rubber shell filled with sand
• Surface: Tire-tread texture for grip
• Type: Non-bounce slam ball
• Colour: Black

Care and maintenance

Use on suitable training surfaces and avoid sharp or abrasive contact points to help protect the outer shell. To maintain shape and long-term performance, you can add a small amount of air through the valve when required.

Looking for a heavier option?

Move up to the GravoMax Slam Ball 25KG for the next step in resistance while keeping the same grip and non-bounce training feel.

Explore all slam ball weights

To compare sizes and choose the right training load, browse our Slam Balls collection. You can start with lighter weights for speed and control, then progress to heavier options for strength and conditioning work.

Need help choosing a slam ball weight?

For product questions, training setup advice, or stock updates, you can also message GravoMax on Facebook or Instagram. If you need help choosing a weight for your training level, send us your workout style and use case.