Drain curve line improves grip and provides users with a smoother and more stable driving experience. High cost PU raw material production, good toughness, strong tear resistance. Solid tires with high quality polyurethane microcellular foam technology have good abrasion resistance, explosion resistance and tear resistance. Look at the side of your old tire and find the word you want to install before installation. (700 x 23C or 700C or 23 - 622C. Note: The color and size of the actual item may vary slightly from the published images due to lighting and display settings. If you have any problems or concerns with the product, please do not hesitate to contact us. We will respond quickly to your satisfaction.