Sit N Gym Plus 55cm Red, Balls, Body Building & Fitness

Sit'n'Gym Plus offers premium FitBALL® quality with the addition of small peg feet, so it doesn't roll away when you stand up. This burst-resistant ball provides all of the ergonomic seating benefits of the FitBALL®, but stays put when not in use.
Sit'n'Gym Plus 55 cm (Red).