Name caster wheel,caster wheel,caster diameter 75/85/100/125/160/200mm bearing 50/55/70/100/150/230kg material rubber,pp&stee caster wheel,caster wheel,caster1 diameter 75/85/100/125/160/200mm2 bearing 50/55/70/100/150/230kg3 material rubber,pp&stee chair castor wheel