The quality of the ball is good. However, the dimensions given in Redondo balls are generally imprecise: all balls are much smaller in Vergleicfh to the Pilates balls of Sissel. Therefore, the balls of the company TOGU are not suitable for all Pilates exercises with small ball. Who is doing exercises for 22 cm bale size, requires the TOGU Redondo ball in 26cm. This ball is in turn less than 26 cm but is roughly the size of Sissel Pilates Ball 22 cm.