【Easy to Install】: We provides screws to install bolt lock. The bolt can be pushed left and right(or up and down). Use a screwdriver or drill bit to install chain door guard on the door or window. The installation of door bolt lock can be done by yourself within a few minutes. 【Stronger Durable】: The door latch lock is made of metal copper material, the strong latch has been tested for more than 500,000 operations. The bolt lock adopts surface drawing anti-oxidation treatment, which improves corrosion resistance, enhances wear resistance and hardness, protects the metal surface, and has good insulating properties. 【What You Get】: Door bolt lock and screws. Please check the size and make sure it is suitable for your use before you make a purchase. Thank you for your support. If you have any questions about the product, welcome to consult us. We are committed to providing better quality products and more considerate services. 【Widely Used】: The door bolt lock is a commonly used classic style. Door bolt lock can be used in many places, such as apartment doors, hotel doors, office doors, bedroom doors, storeroom doors, basement doors, garage doors, cabinet doors, windows, etc. Suitable for doors, cupboards, wardrobes, windows, kennels, fencing, bedrooms, bathrooms, sheds, garages, and similar applications., Manufacturer: BDSHGRDH