Niuniu Product Description: Quantity: 2pcs Color: silver There is chromatic aberration RELIABLE PROTECTION: The door security chain can offer reliable protection for users. Not only can forced entry be prevented, it also helps you identify the call before opening the door completely. These heavy duty latch bars can keep the user safe, allowing them to answer their door without access to their home. PREMIUM QUALITY: Made of high qulaity zinc alloy, these heavy duty door chains are thick and rust resistant, more durable to use. ensuring quality and longevity. This heavy duty door lock works similarly to a door chain but is more robust due to the thick door bar that holds the lock in place. CHILD-SAFE SECURITY DEVICE: These door latches can also be installed out of childrens reach so they cant open the door easily by themselves, which can provides additional child-safe door security. EASY TO INSTALL: This door lock is easy to install on the door. With several screw holes on the surface, you can firmly fix the bolt so that it does not fall easily.VERSATILE APPLICATION: This safety lock for doors has a smooth surface that is comfortable to the touch and does not hurt the hand during use. Suitable for all wooden and iron doors for homes and hotels. VERSATILE APPLICATION: This safety lock for doors has a smooth surface that is comfortable to the touch and does not hurt the hand during use. Suitable for all wooden and iron doors for homes and hotels.