1. Item: Bicycle tubes 2.Valve type: AV, DV, FV, EV, ItV 3.Material: ... , we supply high quality butyl inner tubes, as well as self-sealant tubes (puncture tubes), cycling tubes, thron resistant tubes, superlite tubes, natural tubes, and bicycle tires.OEM ... .75-2.35,700x47c-52c(47/57-622) bike rubber inner tube20x1 3/8