Burst Resistant Gym Ball with pump and online guide. This ball is burst-resistant and has a load rating of 300kg. Perfect for Fit Ball workouts, Yoga, Pilates or physiotherapy and can be use as a chair to aid with postural problems. The ball comes complete with a comprehensive online workout guide. It features 40 great Gym Ball workouts including warming up, body weight exercises and dumbbell workouts using the ball.