【Lightweight and Portable】Weighing only 39 grams, this TPU inner tube is ultra-lightweight and portable, making it easy to carry and replace without adding extra weight to the device.【Puncture Leak Proof】Made of durable TPU material, this inner tube is puncture and leak resistant, with enhanced reliability and durability compared to standard inner tubes to prevent accidental air leaks.【Wide range of applications】Suitable for road bikes and mountain bikes, with a wheel diameter of 700C, it can accommodate vehicle tires of various sizes, ensuring versatility and compatibility for different riding needs.【French Valve Design】This inner tube adopts a French valve design, which can be used with the common French valve head, providing a simple and user-friendly inflation process for added convenience.