The Burst Resistant Yoga/Exercise Ball is a firm heavy-duty ball, which is burst resistant to 600 PSI. Made from a high density polymer that resists tearing and puncturing, this yoga ball will withstand the pressure and weight of all users. This latex free ball is designed to help you work on those challenging core exercises. The Yoga/Exercise Ball is perfect for stretching and stability training and/or for toning exercises. Yoga balls are a key part of developing core strength. The round and mobile surface of the yoga ball forces the core muscles to work harder to maintain balance; allowing you to work more muscle groups. This is an ideal addition to your home gym. Our Burst Resistant Yoga/Exercise Ball measures 65cm in diameter and includes a pump for inflation in the package. Available in different colors.