General description The AlwaysH Zinc Alloy Door Handle with HD lens is designed to enhance your security by allowing you to see the entire surrounding area, from the top of the head to the toes of a person standing outside. This door peephole provides the best quality security for you and your family, ensuring peace of mind. Technical specifications Material: Zinc Alloy Drill bit size: 16mm Suitable for door thickness: 35-60mm Installation Drill a 16mm diameter hole in the door. Insert the peephole into the hole. Screw the two sides together and tighten by hand. Usage This modern security peephole is suitable for various applications, including home, office, hotel, and front doors. It is an essential security addition wherever you need to see who is outside your door before opening it. Other information Anti-trampling cover: By closing the peephole cover, outside visitors cannot see through the peephole into your home, providing the highest level of privacy for your protection and