Features: 1. Made of high quality material, which is durable, wear-resistant, lightweight and with strong anti-pressure ability. 2. It can help to prevent your tire from puncturing by glass, thorns, nails, etc. 3. Protecting your inner tube and extend the life of tire. 4. Quick and easy to install, just stretch them over your rims and let them stay in place. 5. Great cycling accessory for cyclist. Available in 6 sizes, you can choose based on your needs. Specification: Item Type: Bicycle Accessory Material: PVC Size: 20inch*2cm, 24inch*2cm, 26inch*2cm, 27.5inch*2cm, 29inch*2cm, 700C*2cm (optional) Color: Red, Black(optional)Product Length:20 inch: 58.5cm/23.0in24 inch: 74cm/29.1in26 inch: 80cm/31.5in27.5 in: 85cm/33.5in29 in: 89cm/35.0in700 C: 89cm/35.0in Package List: 1 * Tire Liner