SECURITYOnce the latch is closed, it can be slid in the center of the two recessed flaps to prevent theft and opening from the outside. Please check the detail page for door lock dimensions before purchasing. [HIGH QUALITY MATERIALS] The latch is made of high quality stainless steel, which has the function of anti-rust and anti-corrosion. This makes it more durable. It can be used indoors and outdoors.[DATA PROCESSING] The surface is brushed and polished, very smooth, no burrs. The position of the countersunk hole screw is designed to be beautiful and generous, and the fixing screw does not protrude. At the same time, the edges and corners are smooth and will not hurt anyone. [UNLIMITED INSTALLATION] The door lock can be installed in two directions and can be opened on the left or right. (There are 8 assorted screws in the package, which are very easy to install)[SCOPE OF APPLICATION] Suitable for doors, windows, locker rooms, bathrooms, pet doors, closets, etc. Better protect your privacy and security and that of your family.