The adidas Gymball helps strengthen and tone your core A home gym essential, the adidas Gymball helps strengthen and tone your core with a range of stability exercises. Made from anti-slip material, the ball supports you throughout your workout with a dual-textured surface for maximum grip. Featuring anti-burst technology, the ball slowly deflates if punctured to help avoid injury. Complete with a pump; the adidas Gymball gives you all the tools for effective home workouts. Features: 110 kg max user weight 55cm diameter – ideal for users between 155 – 167cm 65cm diameter - ideal for users between 170 – 185cm 75cm diameter - ideal for users 188cm or taller Anti-burst technology slowly deflates if punctured Dual texture surface for maximum grip Helps develop core strength and stability Includes hand pump