1. Item: Bicycle tubes 2.Valve type: AV, DV, FV, EV, ItV 3.Material: ... 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 production are ... ) 29x1.7529x1.75-2.35,700x47c-52c(47/57-622) tire inner tube12 1/2x2 1/4