When you want to keep your Swiss Ball steady, this Sissel Fitness Ball Stabilizer will do the trick. You can use it for safe exercising or to keep the ball steady while you use it as a chair. Round and with a hole in the center like an automobile tire, the stabilizer actually has three short rubber feet underneath that limit the ball from sliding or rolling. It works with balls of diameter 45 cm and up.

For customer service on this item, please call 800.875.6148 (9am-5pm ET M-F).