Anti-theft Buckle Door Buckle Door Bolt Door Lock Buckle Hasp Door Anti-lock Buckle Household Thickening Mute Anti-rust 【Security & Privacy】 Swing bar door locks are security locking devices for swing-in doors, allow people contained in the room to open the door few inches for id or air flow whereas offering privacy and safety for visitors and residents. Door latches also can be put in out of children's attain so they can not open the door by means of themselves, offering further child-safe door security. 【Premium Quality】 The latch is manufactured from fantastic stable zinc alloy, which is sturdy and not smooth to rust. The floor is polished for beautiful appearance. The thickened backside plate and thick head lock materials are strong, not easy to break, and extra secure, making certain your loved ones safety. 【Advanced Craft Features】 The rotating shaft is supplied with precision steel balls, and the position of the 0.33 tools is adjusted, and the door lock is opened and closed extra smoothly. The base panel is thickened, and the screw holes are constant at 3 elements to make the latch set up extra secure. 【Easy Installation】 The set up and operation is simple, you simply need a screwdriver, after making the mark, tighten the door lock with screws. Installation is short and straightforward 1. Please favor the right location in your door and let its main body be aligned with the sub-body, then make marks of the screw holes. 2. Fix the key body to the door body with screws. 3. According to the mark, repair the sub-body with screws at the door. 4. Close the door and test the door lock. Specifications - Material: Premium zinc alloy - Finish: Beautiful plating process -Application: Ideal for limiting door openings and home door secure in residences, home, hotel, motel, Inn etc.