Specification: Condition: 100% Brand New Color: Sliver Material: Zinc alloy Suitable for opening: diameter 14mm Suitable for door thickness: 35mm-55mm Degree: 220 Package Included: 1 x Door Viewer Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. 【Fit For】This type of door viewer is suitable for door thickness of 35mm-55mm. Moreover, it also fits for wood, fiberglass or metal doors. 【Function】The lens of this wide door viewer will secure your home against burglary, intrusions and home invasion. 【220° Viewing Angle】This door viewing hold comes with 220 degree viewing angle, providing the security of identifying visitors from behind a locked door. You can easily view the entire surrounding area from the top of the head to the feet of someone standing outside. 【Easy Installation】The safety door viewer is easy to install. You can replace your door viewer in 5 minutes with no tools required. 【Privacy Protection】The wide angle door viewer is designed with a solid, heavy duty viewer cover, which increases your privacy. With the cover in place, visitors outside cannot see through the viewer into your home, offering the highest level of privacy for your protection and safety.