Feature:1. Easy to disassemble and install, put between the inner and outer tires.2. Anti‑puncture ability, can effectively prevent gravel and glass from piercing the inner tube during riding.3. It can effectively the of tires, avoid injury, and the of riders during riding.4. Strong adhesion, average is not easy to move on, not easy to loose, convenient and practical. Suitable for 24/26/27.5/29 inch tires mountain.5. Light weight, it will not increase the load in the riding, whether it is a race or a long journey, it will make you more relaxed.Specification:Item Type: Tire LinerMaterial: PVCColor: As Pictures Shown Size: L sizeProduct Width: Approx. 40mm/1.6in, Thickness: Approx. 0.5mmWeight: Approx. 101g/3.6ozSuitable for 24/26/27.5/29 inch tires bicycle mountainuse:Installed between the outer tube and inner tube to the inner tube and prevent the inner tube from being pierced by gravel, glass and other objects during riding. Package List:2 xTire Liner