This 55cm Viavito gym ball is suited to those seeking the ultimate in quality! Made from 1300g of high-grade, non-toxic PVC, this heavy-duty gym ball is the right size for users under 168cm (5'6") in height. To ensure the perfect fit, it’s 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.