Key Features Made of highquality polyurethane material durable and toughness lightweight and with strong antipressure ability It is helpful to prevent your tire from puncturing by glass thorns nails etc and protect your inner tube and extend the useful life of the tire to avoid causing danger to the ride It is quick and easy to install just stretch them over your rims and put them stay in place Absolutely not cause tire or tube to damage or loosen spokes The liners stay against the tire from the pressure of the tube Its a shield against punctures from thorns glass and road debris the enemies of every cyclist

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