Feature: 1. High Performance: Made of high quality butyl rubber, with good air tightness, heat resistance and durability. Air nozzle is high air tight air nozzle, stable and durable. 2. Good Air Tightness: With excellent air retention performance, under normal use for months without air pumping, saving time, to avoid frequent air pumping trouble. 3. Protective Function: Long service life, not easy to leak and damage, can increase the life of the tire, can maintain the correct internal pressure, reduce the tire side excessive twists and turns. 4. Parameter Description: 700 refers to the type of tire, which is the wheel diameter of the tire. 35/43C is the suitable outer tire width, that is, the outer tire width is between 35/43C. It is appropriate to use this inner tube. 5. Warm Prompt: Do not use pointed mounting tools when removing or installing the inner tube to avoid puncturing the inner tube. Specification: Item Type: Bike Inner Tube Material: Butyl Rubber Color: As Picture Shown Application: for Road Bike Gross Weight: Approx.173g/6.1oz Valve Type: F/V (Nozzle). Package List: 1 x Inner Tube