Anti-theft chain, door chain, domestic door bolt, door lock buckle, security lock, window buckle, anti-locking bolt, punching

This black chain lock is made of stainless steel for durability and comes with screws for easy installation.

Simple to use, just press the button on the back of the door to remove the chain; it cannot be unlocked from the outside.

Suitable for homes, hotels, apartments, etc., to increase security, prevent theft, and give you a greater sense of security.

It can also be used to prevent children and pets from leaving the house without permission.