good-quality Material: Crafted from and flexible TPU, these inner tubes provide excellent puncture resistance and enhanced durability, ensuring a smooth ride on any road . Optimized for Performance: Designed specifically for road bikes, these ultralight tubes minimize rotational weight to improve efficiency and speed. The TPU material also ensures that the tubes do not deform under pressure, maintaining a consistent shape and performance. Equipped with a French valve (F/V) available in lengths of 65mm, these tubes are compatible with a wide range of road bikes and rims, offering flexibility for different setups. Size Compatibility: Perfectly fits tires sized 700c 23-35C, making it a versatile choice for most road cyclists looking for reliability and performance. Color:Green Material:TPU Package Contents: 2 * Bicycle inner tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.