RPM Power Powerball 250 Hz Autostart Classic

The RPM Autostart Classic 250Hz powerball is an easy way to unwind, relax, and even strengthen and exercise the muscles in your entire arm. The powerball is a handheld gyroscope that reaches speeds of up to 15000 revolutions per minute, creating a resistance equivalent to a load of up to 16kg. Regular exercise helps strengthen the muscles in your forearm, wrist, and fingers. The powerball is the size of a tennis ball and has about the same weight. It can be used for strengthening and rehabilitation, but also as a source of fun.