French Fitness Rack & Rig Cannonball Grips
Best grip strength trainer for serious home gym athletes.
These spherical attachments transform standard pull-up bars into challenging grip strength stations. By forcing an open-hand hold, they build forearm and hand endurance far more effectively than traditional bars, making them an essential tool for climbers and functional fitness athletes.
$32.00
at
Fitness Superstore
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Who it's for
- Athletes looking to improve functional grip for climbing or lifting.
- Home gym owners wanting multi-functional tools for limited spaces.
- Serious lifters requiring equipment that withstands intense daily training.
Who should skip it
- Novice trainees who lack foundational hand and forearm strength.
- Users who prefer the absolute stability of a fixed bar.
- Fitness enthusiasts with sensitive skin or those avoiding calluses.
Performance breakdown
Grip Challenge
Spherical design forces intense forearm engagement compared to standard pull-up bars.
Installation Speed
Straps allow for near-instant attachment to almost any existing rig system.
Build Durability
Commercial-grade construction withstands heavy, repetitive use in demanding gym environments.
Versatility
Seamlessly transitions between pull-ups, hanging holds, and functional fitness training variations.
Ergonomic Texture
Surface finish provides reliable friction without being overly abrasive on palms.
Portability
Compact, lightweight design makes these easy to toss into a gym bag.
Key Specs
Accessory Type
Grip attachment
Mounting Type
Suspension
Intended Use
Grip strength training
Compatibility
Rack & Rig Systems
Commercial Grade
Yes
Know before you buy
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