Smart Alarm -2x Peephole Door Viewer 220 Degree Viewing With Cover Home Security 14mm 2# Highlights Brand Generic 2x Peephole Door Viewer 220 Degree Viewing With Cover Home Security 14mm 2# Description: Material high quality, durable and never fade. Safer with the cover, visitors outside cannot see through the viewer into your home. The 220 degree viewing angle helps identify visitors behind a locked door. Adjustable length, easy and convenient to install. Suitable for 35mm-60mm thickness door, wooden doors, security doors, fire doors, etc. Specification: Material: Zinc Alloy Viewing Angle: 220 Degree Shortest Length: Approx. 42mm/1.65inch Application: 35-60mm/1.38-2.36inch Thickness Size Chart: 1#2#3#4#5#6# Peephole Diameter: Approx. 25mm / 0.98inch Pipe Diameter: Approx. 14mm/0.55inch Cover Diameter: Approx. 22mm / 0.87inch 7#8# Peephole Diameter: Approx. 30mm / 1.18inch Pipe Diameter: Approx. 16mm/0.63inch Cover Diameter: Approx. 25mm / 0.98inch Package includes: 2pcs Door Viewer Note: Since the above size is measured by hand, the actual item size might be slightly different from the above size. Due To Lighting Effects, Monitor Settings Etc Slight Difference In The Color Tone Of The Pictures And The Actual Item.