Features: 1. Made of quality material which is durable, wear-resistant, lightweight and with strong anti-pressure ability. 2. Save your effort and money. Spend far less on tubes over the lifespan of your bike. 3. Installed between bicycle tube and rim, protect tube from pierce by spoke or friction during trip. 4. There are 6 sizes to choose from: 14", 20", 26", 27.5", 29", 700C. You can pick according to your needs. 5. Suitable for most road bike, mountain bikes, track bike, etc. Upgrade your bike and bring a better experience. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description: Material: composite material Size,Thickness,Width,Recommended Wheel 14",0.7mm,40mm,14/16" 20",0.5mm,40mm,20/22" 26",0.5mm,40mm,24/26" 27.5",0.5mm,40mm,27.5" 29",0.5mm,40mm,29" 700C,0.7mm,25mm,700C Color/Style: As the picture shown Include: 1 pair of Tire Liner (tire not included) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.