Water workouts are increasingly becoming a popular method of exercising to stay fit and rehabilitation—and Hydro-Tone is one company devoted to providing the tools for water-induced wellness. Their bells are designed with 3-dimensional resistance for the totality of water. Hydro-tone, based in Yorba Linda, California, also patents specialized systems which include, boots, bells and exercise instructions. The yellow plastic part of the bells and boots is constructed from a hi-impact polypropylene which is highly UV and chlorine-resistant factors. Complete your water workout with a Hydro-Tone system for use in your own pool system or with a class.