The 2pcs Cycling Tire Liner is designed to provide protection against punctures while cycling. Made from a soft material, it automatically shrinks with pressure without causing any harm to the inner tube. With its super toughness and elasticity, it can resist glass and crushed stone, providing an explosion-proof effect. These tire liners are ultra-light and ultra-thin, ensuring that they do not add any extra burden to your riding experience. Installing them is easy with the following steps: first, use a tire lever to remove one side of the tire; then, smoothly round the puncture-proof tire pad along the inner tube; next, reduce any excess parts and connect them; finally, slowly pump up the tire after inserting the tire pad. If there is any deviation during the inflating process, adjust it in time. The Cycling Tire Liner is available in different sizes to suit your needs. The 700C size has a thickness of 0.5mm and a width of 25mm, suitable for 700C 18-25mm tires. The 26-inch, 27.5-inch, and 29-inch sizes all have a thickness of 0.5mm and a width of 40mm, suitable for their respective tire sizes. Please note that the actual color of the item may vary slightly from the pictures due to lighting and screen settings, and there may be a slight dimension difference due to manual measurement. Package includes 2 x Cycling Tire Liners, providing you with double the protection against punctures during your cycling adventures. Key Features: Soft material that shrinks automatically with pressure Super toughness and elasticity for puncture resistance Ultra-light and ultra-thin design for a seamless riding experience Easy installation process Available in different sizes to suit various tire sizes Package includes 2 tire liners for double protection Durable and long-lasting Provides explosion-proof effect