1Rubber Material: The tire is made of premium rubber with soft texture, stable production structure, good friction resistance and long service life, so as to better protecting the safety performance and riding comfort of the user. 2Easy to Use: The 8.5in tire is easy to use and replace, flexible to adjust, tightly locked, and more convenient to use. 3Anti Slip Pattern: The non slip pattern on the surface allows the tire to be used in snowy and rainy days, making it safer to ride. 4Product Features: And the inflation free tires have good damping properties compared with tires, allowing you to drive on most roads and give you a comfortable driving experience. 5Applicable Models: The 8.5 x 50 outer tire is suitable for Xiaomi electric scooters, 8.5in electric scooters or other size scooters to modify to 8.5in tires.