Product Overview
Develop the grip of a master!
An original and easy way to develop your wrist and forearm. Hold the Roller Ball tight in your hand, stroke hard across the rotor, or use the starter cord for an even easier start, and start a rapid left-right pivoting wrist motion. You’ll feel the rotating force soon!
Order your roller ball today.
An original and easy way to develop your wrist and forearm. Hold the Roller Ball tight in your hand, stroke hard across the rotor, or use the starter cord for an even easier start, and start a rapid left-right pivoting wrist motion. You’ll feel the rotating force soon!
Order your roller ball today.