Detailed Product Description Baby stroller tireSome sizes as follows: NameSizeUnitWeight(g)Cover tire7*1 3/4Bar200Cover tire10*2Bar330Cover tire280/65Bar440Cover tire12 1/2*2*1/4Bar450Inner tube10*2Bar180Inner tube12 1/2*2*1/4Bar200Character:Insipidity,natural environment,wear resistant,no-defect apprearance Warmly welcome to contact me to get more information.