Enhanced SecurityThis recodeable combination lock adds a 4-digit combination to ordinary door latch locks, allowing you to set up to 10,000 possible passwords, greatly improving your security and privacy . The default password is 0-0-0-0, no key is needed, no worry about losing the key. Strong and DurableThe door latch lock is made of high quality zinc alloy material, solid steel bolt, diameter in 10mm and covered with waterproof coating, which protects the lock from rust and weather, improves resistance to wear, hardness and provides pick resistance and durability. The handle is also made of solid steel, which is not easy to break and not easy to loosen. 2 Installation MethodsOur combination slide bolt lock supports 2 installation methods. installation, vertical and horizontal. The sliding bolt lock kit comes with a lock cover for horizontal use and a metal side door loop for vertical use. (Note: the bolt must be aligned with the lock cover or door loop lateral. ) Easy to Installslide latch lock is used power screwdriver and drill to mount on your door frame and tighten the screws after aligning with the lock cover. Just need a few minutes to install, easy and quick. (Note: The one-way screws cannot be removed once installed, and the installation position must be confirmed before installation ) Suit for Indoor and Outdoor. With a size of 120 x 40 x 20 mm, the combination lock is easy to install and install in the most compact spaces. The combination lock is perfect for all around use including school or home lockers, sheds, cabinets, storage areas, garden gates, farmhouses, cupboards, wine cellars and any place where you want to keep security and privacy. Color: Black Package includes: 1 x Combination Bolt Lock 1 x Metal Gasket 6 x Single Use Screws