【Anti-rust door lock core】Our bedroom door locks are made of high-quality aluminum alloy + iron, and the surface is coated. It has anti-rust ability and can resist most acids and other corrosive agents. If the door is opened or closed many times, it will not even be damaged. Durable and not easily deformed. 【Silent bolt design】Installing our mortise lock on the door can effectively play a mute effect. Just push the door lightly and the door will close automatically. So as to achieve a silent and quiet movement. Create a quiet, safe and comfortable environment for you and your family. 【Universal oblique lock cylinder】The dimension between the hole and the edge of the latch is 45mm. The tubular latch is 7cm long and 5.9cm wide. The 45mm latch is suitable for almost all handles. Before purchasing, you should check whether the hole pitch that meets your needs is compatible with different door lock handles. 【Easy to install】The set includes 5 tubular latches. You can adjust the slide of