Features: 1?Selected Material: Made of high quality butyl rubber, which has puncture resistance, airtight performance, heat resistance and durability. Air nozzle is high air tight nozzle, stable and durable. 2?Suitable Outer Tire: 700 refers to the type of tire, which is the wheel diameter of the tire. 35/43C is the suitable outer tire width, between 35/43C. It is appropriate to use this inner tube. 3?Less Pump Up: With excellent air retention performance, under normal use for six months without continuous air pumping, saving time, to avoid frequent air pumping trouble. 4?Long Service Life: Not easy to leak and damage, can increase the life of the tire, and maintain the correct internal pressure, reduce the tire side excessive twists and turns. 5?Security Installation: Do not use sharp mounting tools when removing or installing the inner tube to avoid puncturing the inner tube. You could start installation once you have received the package.Item Type: Bicycle Inner TubeProduct Material: Butyl Rubber Weight: Approx. 182g / 6.42ozAir Nozzle Size: A/V (American Valve)Application: For 35/43C cover tyrePackage Included:1 x Inner Tube(Shipped Without Gas)