Use the Gaiam Total Balance Ball 55 cm Yellow (Stability Ball) to add resistance training to your workout, for maximum results. This ball will help you sculpt and tone you abs, arms and legs. Use this ball for resistance and balance, along with workouts. When used with Pilates, yoga and strength moves the Balance Ball will help to focus on major muscle groups. You’ll love this low impact yet challenging workout. Product Details: Highest quality anti-burst Balance Ball. PVC: 6P and Latex free. Includes: 1 Balance Ball & Plug. (PUMP NOT INCLUDED.)