GOFLX Exercise Ball, 55cm / 65cm / 75cm Yoga Birthing Stability Swiss Ball with Pump - 200kg (440lbs) Weight Capacity Premium Quality: Professional grade PVC material is rigorously tested to ensure that the ball stays inflated during and after use. Dense and Durable: Superb support and control is provided with our unique anti-burst design. Adaptable to You: Yuitable for a wide range of activities; yoga, Pilates, exercising at home, gym workouts, CrossFit and pre/post-natal birthing exercises. Perfectly Sized: Available in a range of colours and in 55, 65, 75 and 85cm sizes, the GoFLX gym ball is your perfect workout companion. Lifetime Guarantee: In the unlikely event you experience an issue with your exercise ball in its lifetime we will repair or replace it, no questions asked!