Description: 【Product Specifications】: Bicycle inner tubes are the widest range of sizes on the market, fits most road and mountain bikes. Note: Please check your tire size before purchasing. 【High Quality】: The light bike inner tube is made of high quality TPU, which has good sealing performance and stable tire pressure, and has the characteristics of aging and shock absorption. 【Durable and Comfortable】: The 700 road bike inner tube is more durable, can withstand the toughest terrain, and is resistant to punctures and tears. The weight is only about 38 grams. 【Easy to Install】: Durable bicycle inner tube inner tube installation operation is very simple and quick, saving time and effort, you can replace the old inner tube in minutes. 【Important Tips】: Please inflate a small amount of air before you are ready to install until the inner tube is round, by the way check if there is any air leakage You can shape it that it does not twist into a ball and make it flat. Finally, check whether the inner of the tire is flat. Specification: material: TPU Package Includes: 1 Bike Inner Tube Note: Please allow slightly errors due to manual measurement and different monitors.