Diablo Gyroscope

Metal Powerball Autostart Diablo evo pro is a powerball wrist exerciser like no other. With a chrome finish, metal shell and an LCD spped meter, this powerball gyroscope is a league above any standard model. For intense wrist strengthening exercises, Powerball gyro diablo evo is a powerful piece of hand exercise equipment that will make your muscles burn. Experience the ultimate upper-body workout with this incredible nsd powerball gyro exerciser.