65CM Gym Fitness Ball, H&Z Exercise Pilates Balance Swiss Yoga Gym Fitness Ball Aerobic Abdominal Aerobic Abdominal Static Strength Exercise Stability Ball (Grey) Ideal for strengthening and toning your overall body muscleHelps Helps Improve balance, co-ordination, flexibility and circulation For indoor or outdoor use, ideal for use at home, in the office or in the gym Safe Durable and easy to use. Easily deflated for storage Maximum User weight 135KG