Feature:1. Rubber Material: Using high quality rubber material with stable internal structure and strong flexibility, the inner tube can fully meet the international standard pressure.2. Thicken Inner Tube: Thicker and reinforced inner tubes have higher safety performance and longer service life than ordinary inner tubes.3. Pneumatic Inner Tube: The filled inner tube is suitable for scooters and bicycle tires with the same wheel hub size, and has a wide range of applications.4. Easy to Install and Disassemble: With a tire lever, it is more convenient to disassemble and install.5. Application: The inner tube is very suitable for M365 scooter. In addition, the outer tire specifications are 8 1/2x2.0 or 8.5x2.0, and for to modify 10x2.0 tire can use this specification inner tube.How to Use:It is very convenient to replace the inner tube, and the installation and disassembly are very simple. Please check the position of the valve and make sure that the installation direction is correct.Specification:Item Type: 8 1/2x2 Inner Tube with Straight ValveMaterial: Rubber Product Color: As Pictures Shown Tire Specification: 8 1/2x2.0Product Weight: Approx. 278g / 9.8oz Package List:2 x Inner Tubes 2 x Tyre Tool