Feature: 200 degree viewing angle provides 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. Suitable for door thickness: 35mm-60mm, suitable for doors, wooden doors, security doors, fire doors. Easy to install, replace your door viewer in 5 minutes with no tools required. The lens will secure your home against burglary, intrusions and home invasion. A solid, heavy duty viewer cover 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! Specification: Condition: Brand New Color: Green Bronze / Red Bronze / Bright Chrome / Gold / Brushed Chrome (Optional) Material: Zinc alloy + Resin lenses Suitable for opening: diameter 16mm Suitable for door thickness: 35mm-60mm Degree: 200 Size: As picture shown 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. .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.