[High-quality butyl rubber material]This inner tube is made from premium butyl rubber which is not only resistant to high temperature but also anti-aging, with good sealing properties, long service life.[Upgraded Design]The inner tube has clear lines on its surface, improving its elasticity while providing non-slippery benefits. Its wear resistance also ensures that it can withstand regular use without damage.[Secure air retention] Electric bicycle inner tube The metal valve ensures a high airtight, which is robust and durable. It has a prolonged use of up to 180 days with a single inflation, exhibiting its effectiveness. after replacing the butyl rubber inner tube, the impact on the uneven pavement is absorbed, which makes driving more comfortable and safe.[Convenient & User-Friendly]This valve inner tube bending is not only lightweight but also easy to install, making it reliable for use. By providing a smooth using experience, this inner tube greatly improves your ease of driving. Save time and effort and replace your old gas chamber in minutes.[VARIETY OF OPTIONS]The inner tube is available in multiple specifications to meet your varied needs. Whether you need a specific size or type, you can find the perfect fit for your vehicle.[Multiple Specifications] Metal valve with high air tightness, robue and , long use time up to 180 days with inflation. You can choose from several specifications, meeting your different needs.[Fine Maching] Clear lines on the inner tube, highly elatic, non-slip and wear-resistant. Professional manufacturing process fully meets andard requirements, able performance, long service life, safe and reliable.[Easy to ller] Lightweight and easy to ller, reliable to use, bringing a great using experience. The replacement inner tyre is very practical and simple to remove and remove. Please check the position of the valve and make sure you turn them in the right direction.[Personalized Service] Your satisfaction and our utmost attention. If you have any queions about the product, please feel free to email us. Our customer service will do our best replacement to give you a satisfactory answer within 24 hours.