CoreX 47.5 cm (19") Anti Burst Stability Ball, Gym Ball, Swiss Ball, Commercial Quality Commerical quality, strong anti-burst and anti-slip PVC material. For indoor or outdoor use, ideal for home, office or gym use. Safe, durable and easy to use. Easily deflated for storage. 1,000 Lbs static load capacity. Dense wall construction to better hold. CoreX blue colour. Pump included. 1 year commercial warranty. Please note this is technically a 65cm (25.6" measured deflated longest point to point - this is the standard for measurement) ball, however, measured when pumped up height is 47.5 cms or 19 inches.. We are mindful that some confusion has occurred that has lead to negative reviews due to height classification. Content: one anti-burst and anti-slip gym exercise ball and pump.