DescriptionThis item is made of premium material for durable and long-lasting use.Puncture-proof liner prevents tire from being compromised by hard material. Substantially reduce tire failure rate during long distance cycling or on terrains of bad condition.Features- Color: white. - Material: Polyurethane polymer. - Size: Approx. 2300 x 4 x 0.1cm. - Polyurethane polymermaterial, good acid resistance, wear resistance, toughness and good fatigue resistance - Moderate elasticity, no displacement after weathering and scratching of the inner tube; - Puncture-proof liner prevents tire from being compromised by hard material. - Substantially reduce tire failure rate during long distance cycling or on terrains of bad condition. - When assembling, pay attention to the removal of copper scrap, water and oil.