Power-Putty Medium Blue Onesize
POWER PUTTY is a high quality silicone rubber with the unique ability to resist in proportion to the pressure applied against it. For example, under hard impact it bounces like a rubber ball and under slow force it stretches like elastic. Therefore, it can be squeezed, stretched, pinched, and pulled to provide exercises for strengthening the muscles of the fingers, hand, wrist, and forearm.