Sports Research Exercise Stability Ball with Bonus Hand Pump. Anti Burst Professional Quality Balance Ball Tested up to 2000 lbs of Static Weight. 1 Year Warranty Top Rated Anti Burst Stability Ball for Fitness, Weight Loss, Core Strength, CrossFit, Yoga & Pilates Anti-Burst Tested, Professional grade PVC material Includes hand pump and starter guide Choose between 55, 65, or 75 cm. Colors: Black, Blue, Pink Support 2000 lbs. of static weight