This 65cm viavito gym ball is suited to those seeking the ultimate in quality made from 1700g of high grade non toxic pvc this heavy duty gym ball is the right size for users between 168cm 56 and 178cm 510 in height to ensure the perfect fit its supplied with a hand pump and a specially designed tape measure for correct inflation anti burst rated at 500kg this gym ball is suitable for use indoors in all homes as well as in professional studios