The Tone Fitness 55cm Anti-burst Stability Ball is an easy-to-use, effective accessory for core conditioning, balance training and spinal stabilization. This ball is also useful in weight training and physical therapy to help with a wide variety of exercises. The Tone Fitness 55cm Anti-burst Stability Ball can be used in yoga, pilates and fusion exercise programs to help strengthen and firm abs, back and buttocks. This pilates ball is helpful during rehabilitation as it allows for a wide variety of motion ranges. It is comfortable, convenient and durable during effective total body workouts. This Anti-Burst Fitness Ball features a durable, burst-resistant shell and deflates slowly if punctured, protecting the user from injury. This pilates ball is well-suited for home use and can also be used in a professional gym setting as a part of aerobics classes with ease.