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ZoN Anti Burst Balance Balls - 55 cm

ZoN Anti Burst Balance Balls - 55 cm

ZoN Anti Burst Balance Balls - 55 cm. Features : Anti-burst, non-slip material lets you concentrate on your workout.. Available in three sizes: 55 cm, 65cm and 75 cm.. The exercise ball should be large enough so that when you sit on it, your knees bend at a 90 degree angle.. Suitable for all fitness and skill levels.