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$18.75 AUD
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4 x
$18.75 AUD
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Flexible Equipment Financing From Fitness Hero with GRENKEThe Onyx Adjustable Water-Filled Medicine Ball offers exceptional versatility for functional training. Its weight can be tailored from 3 kg when empty up to 20.5 kg by adjusting the water level.
Designed for exercises such as slamming, throwing, twisting, and pressing, it suits users at all fitness levels, from beginners to advanced athletes. The unique 122-sided textured surface ensures superior grip and control throughout dynamic and powerful movements.
Key Features
Adjustable weight system: from 3 kg (empty) to 20.5 kg (fully filled)
Durable outer shell with 122‑sided ergonomic texture for excellent grip
Stable non‑bounce design—engineered for slams, throws, wall‑balls and functional drills
Ideal for all training modalities: HIIT, CrossFit, core work, rehabilitation, group classes
One ball fits many users and many progressions—save space, maximise value
Easy to fill/fill out for weight adjustments and storage
Specifications
| Specification | Detail |
|---|---|
| Empty Weight | 3 kg (approx. 6.6 lbs) |
| Maximum Filled Weight | 20.5 kg (approx. 45 lbs) |
| Surface Design | 122‑sided ergonomic texture |
| Outer Material | Textured durable shell |
| Use Types | Slams, throws, twists, wall‑balls, core |
| Training Levels | Beginner → Advanced |
Why This Medicine Ball?
Traditional medicine balls have fixed weights and limited progressions. This water‑filled version gives you a single tool you can scale as you get stronger. The shifting water resistance adds an extra layer of challenge, forcing your stabilisers to work harder and boosting functional strength.
Perfect for home gyms, commercial studios, functional training zones or rehabilitation clinics. One ball does it all.
