Portability: The folding chain lock can be compactly folded when not in use, taking up little space, with the storage bracket, it is easy to carry out of . Adaptability: Thanks to the foldable chain design, the folding chain lock can fit around fixtures of various shapes and sizes (e.g. railings, trees, parking racks, etc.), and can be adapted to different sizes of bicycle frames and wheels, providing a more flexible and diverse locking . Durability: The chain part is treated with anti- treatment, which can resist the influence of bad weather conditions and prolong its service life, At the same time, the folding joints are designed to and less likely to fail due to frequent folding. Multiple locking mechanisms: folding chain locks are also equipped with safety protection systems, such as anti-drilling, anti-sawing, anti-hydraulic shear design, as well as complex lock cylinder structure, customised four-digit code, which improves the overall security of the lock and effectively prevents illegal opening. Folding chain lock is not only suitable for daily commuters but also ideal for long-distance cyclists due to their unique structural features, especially for those who own higher-value bikes or are in high-risk burglary areas, they have higher practical value and security. Colour:Black Material:Metal Package Contents: 1 * bicycle lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.