The Forbes Riley SpinGym lets you workout anytime, anywhere. With SpinGym you can achieve an effective upper body workout in five minutes, and it fits in the palm of your hand. The SpinGym comes fully assembled and ready to use, and weighs less than one pound. Yet the mighty SpinGym produces more than 20 pounds of resistance per full. A five minute workout is all you need to re-energize and effectively sculpt, tone and strengthen your arms, shoulders, back, chest, abdominals and much more. Get a workout anytime, anywhere with the SpinGym.