Description: Versatile Use: This mountain bike inner tube set is a good replacement for punctured tubes and is suitable for most road and mountain bikes. Please check your tire size before purchasingQuality Material: This Mountain bike inner tubes are made of premium rubber, offering good sealing performance and stable tire pressure. They also feature aging resistance and shock absorptionFeatures: The road bike inner tubes are highly sturdy with good toughness, capable of withstanding the harshest terrains, resistant to punctures and tearsEasy Installation: The bike inner tube set comes with two tire levers that make installation quick and easy, saving time and effort. You can replace the old inner tube within minutes without scratching the rim the tubePackage Includes: Each package contains 2 Inner Tubes, 2 Tire Levers, 1 Scuff Pad, 6 Sticky Patches Specification: Material: Rubber Package Includes: 2 Inner Tubes(American Mouth);2 Tire Levers;1 Scuff Pad;6 Sticky Patches Note: Please allow slightly errors due to manual measurement and different monitors.