Ainiv 10 x 2.125 inner tube for self balancing electric scooter. -Comfort and safety.Grip smooth, powerful drain. -Good traction, maneuverability and wear resistance. Features: Name: Scooter inner tube Colour: Black Size: 10 inches Weight: 200g Material: Butyl rubber Features: Inflatable Valve: 90 Degree angle valve Tips: Please check your old tires before buying, some scooters that use smaller 6.5 inch tires, etc. They do not all use the same tires. The package includes: 2×Rubber inner tube 2×metal warp