TOGU TG3522NG-SN Brass UL Listed 220-degree Door Viewer with Heavy Duty Privacy Cover for 1-3/8" to 2-9/25" Doors, Satin Nickel Finish 1. High quality optical lens with 220-degree visual angel offers a crystal clear view with an extraordinary wide angle coverage. You can easily view the entire surrounding area from the top of the head to the feet of someone standing outside. It offers the highest quality security for you and your family. 2. Durable Solid Brass metal with super simple installation. Suitable for 1-3/8" to 2-9/25" thick doors, simply drill a suitably positioned 7/8" diameter hole, insert the viewer into the hole then screw the two sides together and tighten by hand. 3.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! 4. Fast Delivery with FIVE YEAR REPLACEMENT WARRANTY, if you are not 100% satisfied with this Door Viewer, we will replace it with a brand new one for you for a period of up to 5 years! 5.This top quality door viewer is currently on a special promotion, giving you security and privacy at a great value price!