1.ICTI, EN71 2.Hight quality, in-time delivery and full capacity 3. eco-friendly balls 4.7 years exprience materialPVC, TPU, PUsizeS5,S4,S3,S2 and S1are available S5 D:216-223mm C:680-700mm S4 D:204-207mm C:640-650mm S3 D:188-194mm C:590-610mm S2 D:153-156mm C:480-490mm S1 D:143-165mm C:450-460mmweight140-450gbladderrubber/30%,50% butylinner packing1pc/polybagouter packing100pcs/ctn (deflated) ...