Features: Made of TPU material, it has good wear resistance and durability, and can effectively resist the puncture and air leakage of external objects, maintaining a good inflation states. The inner tube adopts a lightweight design, reducing the weight of the entire vehicle and improving the flexibility and speed of cycling. Specially designed for road bicycles, it perfectly matchs the wheel size to ensure a stable riding experience. Suitable for professional bicycles maintenance personnel and bicycles enthusiasts, it can be used as an accessory to replace or repair the inner tube of road bicycles. We offer 3 different lengths of nozzles: 45mm, 65mm, and 85mm, which are suitable for most wheel rims heights. You can choose the appropriate inner tube according to the needs of the bicycles. Specifications: Material: TPU Nozzle: French Valves Size: 45mm (1.77inch)/65mm (2.56inch)/85mm (3.35inch) Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Bike Inner Tube