+ EASY TO USE AND QUITE -  Auto start, very quite and smooth, easy to keep going. Fun to use anywhere.


+ BUILD POWERFUL GRIP - Progressive dynamic resistance applied directly into your forearm muscles builds epic grip strength while providing you with a fast, efficient hand and forearm workout.


+SOOTHING REHABILITATION - Spinning at low speeds  brings you immediate wrist pain and elbow pain relief. Also great for numbness in hands.


+ PLAY BETTER SPORT - The Arm Booster is a highly efficient fitness product that strengthens your hands, wrists and arms while also providing an efficient shoulder workout to benefit all sports requiring improved grip strength.


Shipping weight: 350g

Dimensions: 13cm x 13cm x 13cm

Arm Booster Gyro Ball