Pure Fitness Anti-Burst Core Exercise Stability Ball with Hand Pump Extensive testing and a unique anti-burst design provides for the highest quality available on the market Professional grade PVC material that is 100% BPA & Latex Free. Improves your core and overall strength. Perfect for pilates, yoga, crossfit or other exercises. Includes hand pump, extra air plug, valve remover tool and fitness guide 55cm is recommended for users 5'1" to 5'7" Dimensions: 22"x22"x22" Weight Limit: 350 lbs