【Safer Lock Protection】: Bar design security door lock, no lock cylinder structure, prevent lock picking, and add a reliable security barrier for your front door. Meanwhile maintain a safe opening distance, more flexible and good to adapt to different needs. 【Reliable Material】: The chain lock is made in zinc alloy material, strong and sturdy, wear-resistant and rust-resistant, and easy to clean, good for a long-term use. 【Flexible and Stable】: Can automatically limit the distance when opening the door, easy unlocking, and multi-hole fixing, making lock more solid and reliable. 【Size】: Length of the door security lock: 106mm, width: 67mm, the set contains 1 silver bar lock and screws, requires drilling of holes for installation. 【Widely Applicable】: The safety lock can be used in various types of doors and cabinets, suitable for house,hotel, dormitory, etc, making door locking more secure, keep door locked., Manufacturer: TOVOT