Bike type:Road Bike, Mountain Bike Size:26 inch Material type:Rubber Batteries included?:No Product Dimensions:9 x 4.2 x 4.2 cm; 69 Grams Features: 1. Made of high quality material, which is durable and toughness. 2. Designed to protect your bike tires from punctures. 3. Installs easily between the tube and tire to offer powerful puncture protection. 4. High tensile strength and easy installation. 5. Provides physical barrier to block nails, thorns, and other debris. Specifications: Material: Polyurethane Polymer Color: Transparent (as show in the pictures) Package Weight: approx. 72-116g Type Options: 700C, 26", 27.5", 29" Quantity: 2pcs Size (T x W): 0.5 x 25mm / 0.019" x 0.98", suitable for road bike 700c; 0.5 x 40mm/ 0.019" x 1.57", suitable for 26" bike, requirements of tire width 1.5" - 2.1"; 0.5 x 40mm / 0.019" x 1.57", suitable for 27.5" bike, requirements of tire width 1.5" - 2.1"; 0.5 x 40mm/ 0.019" x 1.57", suitable for 29" bike, requirements of tire width 1.5" - 2.1" Length: 2.13m / 6.98ft (700C) 2.07m / 6.79ft (Suit for 26" Bike) 2.24m / 7.34ft (Suit for 27.5" Bike) 2.26m / 7.41ft (Suit for 29" Bike) Package Included: 2pcs * tire liners Note: Not 100% puncture-proof. About this item [Durable Material]: The bicycle tire protector is made of polyurethane polymer, lightweight, toughness and durable in using [Easy to Install]: The inner tube protector can be easily installed between the tube and tire to offer powerful puncture protection, just stretch them over your rims and let them stay in place [Function]: Designed to protect your bike tires from punctures; Provides physical barrier to block nails, thorns, and other debris [4 Optional Sizes]: Available in 4 sizes, you can choose based on your needs; Necessary replacement part for outdoor cycling traveling, gives you a smooth, stable and comfortable ride [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will help you within 24 hours on weekdays [Durable Material]: The bicycle tire protector is made of polyurethane polymer, lightweight, toughness and durable in using [Easy to Install]: The inner tube protector can be easily installed between the tube and tire to offer powerful puncture protection, just stretch them over your rims and let them stay in place [Function]: Designed to protect your bike tires from punctures; Provides physical barrier to block nails, thorns, and other debris [4 Optional Sizes]: Available in 4 sizes, you can choose based on your needs; Necessary replacement part for outdoor cycling traveling, gives you a smooth, stable and comfortable ride [100% Satisfaction]: If you have any question about this item, please feel free to contact us, we will help you within 24 hours on weekdays