Nikko sturdy body circle lock Aluminum silver [NC106]

Country of origin: China Material: Steel (structural part), aluminum (body cover), resin, etc. Weight: Approx. 360g (body only) Compatible mounting diameter: φ13, φ16, φ19 (use the included stay) Product contents: Main body, 3 dimple keys, 6 bands for car body mounting (2 each of φ13, φ16, φ19), screws for car body mounting *Cannot be installed on MTB (vehicles equipped with V brakes) and some car models. *Tools such as a screwdriver are required separately for installation. *Simple instructions for installing the product are included, but specialized knowledge of the structure of bicycles, etc. is required. *If you are not confident about the installation, please ask your local bicycle shop to do the work (for a fee) to avoid accidents caused by incorrect installation. *Please note that specifications, logos, and other designs of listed products may be subject to change due to improvements. *Please apply lubricant to the mechanical parts once every three months to ensure long-term use. If oil gets on the key, wipe it off to avoid staining clothes etc. when storing it.