Explosion proof - This explosion-proof Pilates ball is made of sturdy PVC material and can withstand up to 600 pounds of rigorous training. You never need to worry about the balance ball exploding or losing its shape.Anti slip - The surface of this pregnancy ball is coated with anti slip glaze, ensuring a suitable and safe grip. Use it to exercise, relieve back pain, or as a delivery ball during pregnancy to relieve pain.Quick setup - These fitness balls have a fast dual action pump that can be easily inflated by hand. Your fitness ball is deflated and can be inflated with minimal effort within a few minutes.TOTAL FITNESS - Excellent stability ball for yoga, pilates, or physical therapy. It can even help improve posture and core strength when used as an exercise ball chair, making it great for the office or working from home.VERSATILE USE - Whether you're using this yoga ball chair for exercise or to bounce your newborn baby to sleep, our customer support team is on-hand to assist you with any questions or concerns.