... alloy and a grade ABS color:green/blue/orange/red Item No.: 868CProduct name:Wrist ball with COUNTER Description:Shell material ... the device, it is powered by rotating the wrist, and the speed of rotation can reach over ... like golf,tennis,squash,cricket,baseball,bowling,basket ball,motocross,mountain climbing.-Increase strength in fingers, wrists ... away from dust and damp. 868C Wrist ball with COUNTER