Morgan GYM BALL.75cm Whether you use our gym ball as a seat or as a training tool, it will help improve posture and strength as well as increasing flexibility and balance. Designed for commercial use, our gym balls are made from a robust antiburst latex rubber that can withstand up to 225kg of body weight. Supplied with a foot pump and spare nozzle, this is a great addition to any commercial gym list of equipment. If a Product has a major defect, you are entitled to: Reject the goods and receive a refund Reject the goods and receive an identical replacement, or one of similar value if reasonably available, or Keep the goods and receive compensation for the drop in value caused by the problem.