Description:1.This door-viewer is what you're looking for. It's well made, easy to install, and provides a perfectly clear wide-angle view.2.Its material is zinc alloy,high quality door viewer and has a nice 180-degree visual angle. After installed it,you could see a lot of the area. It offers the highest quality security for you and your family. 3.Once installed, the viewer yields good results. It provides a clear, wide angle view. From the inside, viewing a person standing near the door, you can view the top of the head down to about waist level. 4.Perfect peephole for home, office, hotel and front door where you need to see, monitor, spy and peeking who is outside your door when the doorbell rings before opening, providing you extra privacy and safety. 5.Door Viewer Peephole it Must-have for anyone who takes their security seriously.   Specifications: Material:Zinc Alloy Type:Door Viewer Color:As the picture show Weight:0.1kg Visual range:180° Place of origin:China Package included: 1x Door Viewer   Note: 1. Please allow 1-3mm differs due to manual measurement. 2. Due to the different display and different light,the picture may not reflect the actual color of the item. Thanks for your understanding.