... :45cm ;55cm ; 65cm ;75cm ;85cmGB1018:Anti Burst Gym Ball/QT8451Certification:ISO9001:2000,EN-71 Test Report,Burst-resistant Quality ... Report1. Made of PVC material,named as yoga ball,exercise ball,fitness ball,swiss ball,etc...2. Size from 55cm--150cm,with 55cm, ... 65cm,75cm as regular sizes.3. For shaping,body-building and fitness ...