Thank you for viewing! This is an aftermarket boot zipper for 8-hole boots. As shown in the example photo, threading the laces allows you to put on and take off your shoes by zipping and unzipping. This product is perfect for those who find it troublesome to put on and take off their boots or want to speed up the process. ☆ The zipper has an auto-lock mechanism, so it won't easily slide down. ※ If you use boots for work or mountain climbing, it is recommended to tie the laces tightly to ensure the shoes function properly, so it is best to avoid using this product. Please be aware that this product is not suitable for those who use boots as tools. ※ Please use this product only as a fashion accessory or to assist with putting on and taking off your boots. The following is a description of the product: From cutting to processing, assembly, and sewing, everything was done by hand. The size is 18cm long and 7.5cm wide. The distance between the holes is 20mm. Materials used: Smooth black cowhide leather Black cowhide leather for the lining Black YKK zipper Gunmetal (blackish silver) eyelets Black thread ☆ Custom orders on Mercari are no longer available. ※ If you would like to commission a custom-made piece, please see the page currently listed on another handmade service. Please feel free to comment if you have any questions. #ojamalegaful #zipperunit #bootzipper