Model Number: MB-34013 Key Specifications/Special Features: Function and advantage:Gymball choreography for the main part of the abdomen, back, waist, etc., if you want to practice with slow, rhythmic breathing stretching, squeezing and other movements, so that the muscles get effective massage, relaxation, burn fat effect, but also a way to improve ability to focus, reduce stress, enhance the limbs and spine to withstand the endurance.1. It's nearly suitable for all people2. It's safe during exercise3. It's good forrehabilitation therapy4. It's good at improving balanceand suppleness5.It contributes to lose weight Ball size55/65/75cm Material PVC/Rubber Usage yoga exercise Feature Eco-friendly Packing polybag+carton Logo can customized