URBNFit Exercise Ball (Multiple Sizes) for Fitness, Stability, Balance & Yoga - Workout Guide & Quick Pump Included - Anti Burst Professional Quality Design GUARANTEED to be the Highest Quality Material on the Market Today. 100% Money back guarantee if you are not satisfied. GYM GRADE EXERCISE BALL - Professional quality PVC material, Anti-Burst 2000lbs design able to stand up to the most rigorous workouts INCLUDES QUICK DUAL ACTION INFLATION PUMP - Ball is delivered deflated and can be pumped up in minutes with minimal effort HOME OR OFFICE USE - This premium exercise swiss ball makes working out more effective. Use it for yoga, pilates, stretching and more! PERFECT FOR GIFTS - Comes in retail ready box, instructions , workout guide and 2 air stoppers Perfect for strengthening the abdominals, core and lower back muscles. Manufactured from burst resistant, durable PVC, perfect for tough workouts. High grip, non-slip surface for safe use when performing weighted exercises. Perfect for use with yoga, pilates, or for general strengthening &amp; balance.