Features1Manufacturing Material: Bicycle inner tubes are made of high quality butyl rubber material, it is durable and strong, which undoubtedly extends service life. 2Multiple Advantages: It has the advantages of better sealing performance, ozone resistance, aging resistance, shock absorption and electrical insulation. 3Comfortable and Safe Riding: Butyl rubber inner tubes absorb the impact of bumpy roads, making the ride more comfortable and safe. 4Simple Operation: Installation is quick and easy. Use a wrecking bar to pry open the outer tube, remove the old inner tube, align the air nozzle of the new inner tube with the air nozzle of the steel circle, place the inner tube, inflate it, and arrange the outer tube to complete the operation. 5Ideal Replacement: Heat resistant and withstand the wear and tear of daily use, this is undoubtedly the ideal replacement for broken inner tubes of bicycles. 6Product Size: The tire optional sizes are 14in, 16in, 18in, 20in, 22in, 24in, 26in and tire width is 1.752.125in.SpecificationItem Type:BikeInnerTubeMaterial: Butyl RubberAir Nozzle Model: ForSchrader ValveTire Width: Approx.1.752.125inPackage List2 x Inner Tube2 xWrecking Bar