Perfect Replacement AGPTEK 8 1/2 x 2 scooter inner tube is universal for both front and rear wheels, completely replacing the original Xiaomi M365/Pro scooter tires. Our tires (1.8mm) are thicker than the original tires (0.9mm) and more durable than the original tires. Good damping effectCompared to solid tires, this tire has a good damping effect, which allows you to navigate most road surfaces and gives you a smooth driving experience. However, it should be noted that any tire can be punctured by a sharp object. High Quality Material: Our inner tube is made of butyl rubber (typically used to make car and truck tires). aircraft), which has good waterproof performance, strong compressive strength, heat resistance, environmental protection and durable, it is a perfect replacement for the wear or Xiaomi M365/Pro Scooter Broken tires. [Easy Installation] Two high quality tire levers, extremely convenient to replace the inner tube, easy to install and remove. Please check the position of the valve to make sure it is installed in the correct direction.