Feature: Strong toughness Safe travel can effectively prevent gravel and glass from piercing the inner tube to avoid danger to riding Soft PVC material, strong fit, not easy to move Tough but not broken, strong anti-puncture ability, protect the inner tube and reduce the damage of foreign objects, and can continue to be used after rebounding 0.5mm polyurethane polymer composite material is and thinner without increasing the burden on riding 1. Inflate the inner tube . The air does not need to be too high. Just let the inner tube bulge up. Install the inner tube to ensure that the shape of the inner tube is full and facilitate the installation of the tire pad. don't stray 3. Do not overlap the joints, just cut off the long parts with scissors. Specification: Product Name: Anti-puncture tire pad for bicycle Model: 26 inch/27.5 inch/29 inch/700C/20 inch/14 inch color: White Contains: two Package Included: 2*Anti-puncture tire pad for bicycle Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 【Utility and value】If a product is useful to you, it has value when we sell it. 【 Shopping cart 】 Buy multiple pieces at a time, the more affordable the price. 【 After-sales service 】 Provide 48-hour after-sales service to quickly answer your questions.