Note: In order to fasten the folding lock more firmly, the outer diameter of the embossed part of the pin will be a little larger than lock aperture. Please tap it in with a tool during installation. Easy to Install: Come with a steel pin, easy to replace, not easy to break, flexible installation. The pin is only on one side, and must be inserted from right to left when looking from the front of the scooter. High Hardness: It is made of high-quality aviation aluminum alloy material, hardened and thickened, with good hardness and high strength. Compatibility: This folding buckle is compatible for Xiaomi M365/M365 Pro electric scooter, which the diameter of the middle hole is 6mm. Application: Improve and strengthen the design, as a good replacement or upgrading parts for electric scooter shaft locking. Specification Size: 12 * 5 * 7cm, the size perfectly fits the original Xiaomi M365 and Pro scooter, very easy to replace. Color includes: black, red Package includes: 1pc * folding hook