The 9 inch mini stability pilates ball gives you a full body workout and the ability to target your abs, glutes and inner-thighs. Comes with a straw to inflate, easy to store and travel with. Exercise guide included. Learn how to use your ball correctly with Natural Pilates TV. Receive one free month of our on-demand workout platform, Natural Pilates TV with your purchase of any Natural Pilates exercise prop! (new subscribers only).