Anti-burst with Free Pump - Stability Ball for Yoga, Pilates, Core Strength, Ab Exercises and Balance Training, Swiss Ball for Physio, Toning, Gym; or a Sitting Ball for Improving Posture. Low in Odor. 65cm Strengthen, stretch and tone all major muscle groups Includes air pump, illustrated exercise guide and instructions 500-lb. static weight capacity Slow Air Release Fitness Balls deflate more slowly than Standard Fitness Balls Latex-free