Welcome to our store,hope you enjoy your day! 100% Brand New. Made of polyurethane polymer composite material, which is durable and toughness. Ultra-thin and light, protect your bike tires from punctures. Installs easily between the tube and tire to offer powerful puncture-proof protection. Provides physical barrier to block nails, thorns, glass and other debris. Type: Tire Liner Quantity: 2 Rolls Material: Polyurethane Polymer Composites Features: Durable, Easy to Install, Bike Tire Protector Size Details [Our Size 700C/20-25mm] Thickness: 0.5mm/0.02", Width: 25mm/0.98", Length: 212cm/83.46" (Approx.) [Our Size 26"/1.5"-2.1"] Thickness: 0.5mm/0.02", Width: 40mm/1.57", Length: 210cm/82.68" (Approx.) [Our Size 27.5"/1.5"-2.1"] Thickness: 0.5mm/0.02", Width: 40mm/1.57", Length: 223cm/87.80" (Approx.) [Our Size 29"/1.5"-2.1"] Thickness: 0.5mm/0.02", Width: 40mm/1.57", Length: 230cm/90.55" (Approx.) Notes: You will find more amazing products if you visit our store. We guarantee the lowest price and the highest quality for all of our products! Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Due to different manual measurements, allow for slight size differences. Package Includes: 2 Rolls of Tire Liners