YR 55CM Exercise Ball, Anti-Burst Yoga Ball Chair for Pregnancy, Pilates, Workouts and Physical Therapy, White

Safety and Comfort: The exercise ball is crafted from PVC material, thus free of BPA & heavy metals, safe for pregnant women and children. 55cm diameter (21.6"), It is strictly weight tested and can resist up to 330 lbs. Anti Burst & Slow Deflation: Exercise ball is made with the honey comb structure which makes it deflate slowly and burst resistant if punctured, thus reducing the risks of injury due to falls to the ground. Non Slip Surface: The improved non-slip texture ensures excellent traction, even during sweaty workouts, while its sturdy construction guarantees it won't pop during your exercises. Multi-Functional Exercise Ball: It helps to strengthens muscles, improves posture, balance, and core stability, and helps prevent back and spine ache, great for rehab and flexibility. Easy Inflation: Exercise ball comes with a inflation pump, 2 air stoppers and a plug remover, let the ball sit for 2-3 days after the initial inflation, then inflate it again to allow it to be stretched to the desired size.