Ever wonder what it’s really like to roll around in a hamster ball? Now’s your chance to find out! The Zorb water ball is basically a human-size hamster ball, and this water version lets you take it ...

for the stomach, back, buttocks and thighs. Has great firmness, tension and stability. How to use it: Sit on or balance against this ball to perform a series of exercises aimed at toning stomach, back ...