... color:green/blue/orange/red Item No.: 868CProduct name:Wrist ball with COUNTER Description:Shell material: a grade PCRoller material: ... for sports like golf,tennis,squash,cricket,baseball,bowling,basket ball,motocross,mountain climbing.-Increase strength in fingers, wrists,hands, ... will automatically display the highest RPM ever achieved on the ball, once the rotor is in motion however, the mode ...