Description Made of high quality material,which is safe,non-toxic and durable. Solid high quality steel lock column,hardened by heat treatment,anti-violent unlocking,impact and impact resistant. Simple design and elegant for a good helper in your life. The key is thickened to prevent twisting,the teeth are clear,and the lock opens smoothly. These door locks are surface mounted so that they are easy to install and can be done by anyone. Features: Made of high quality material,safe,non-toxic and durable. Simple and stylish design for a good helper in your life . Suitable for home,commercial buildings,residential areas,etc. Made of iron which provides rust resistance and long service life. Strong locking column made of high-grade steel quality,hardened by heat treatment,anti-violent unlocking,resistant shock and impact. The key is thickened to prevent twisting,the teeth are clear,and the lock opens smoothly. Features: Material: iron. Style: modern and simple. Contents: 1 exterior door lock.