Our bike inner tubes are crafted from premium quality rubber material, ensuring superior air tightness, heat resistance, and durability. They are versatile and suitable for most bicycle wheels. Features: Our tube is suitable for most mountain bikes and is currently the most widely used size on the market, compatible with 26 inches X 1.75/ 2.125 tires. The package includes 2pcs of plastic tire levers, designed to assist in installing the tire over the tube without damaging either the rim or tube. The inner tire is designed to provide superior sealing and can retain air for extended periods, reducing the need for frequent inflation. Our 26-inch bike tubes can also serve as a handy spare, preventing the inconvenience of being unable to ride due to a burst inner tube. The replacement rubber tire is designed to absorb shocks on bumpy roads, ensuring a comfortable and safe ride. Specifications: Material: Rubber Size: 20*13*7cm/ 7.9*5.1*2.8in Weight: 45g/ 1.6oz Package list: 2 * inner tires 2 * tire levers