<br>Item Type: Door Viewer <br>Material: Alloy <br>Color: Red Bronze Color, Bronze Color, Gold, Brushed Color, Bright Color (optional) <br>Length: Approx. 6cm / 2.4in <br>Suitable Hole Diameter: Approx. 16-23mm / 0.6-0.9in <br>Suitable Opening: 16mm / 0.6in Diameter <br>Applicable Door Thickness: 55-90mm / 2.2-3.5in <br>Installation: Surface mounted, opening hole <br>Weight: Approx. 48g / 1.7oz<br>1、Applicable door thickness is 55-90mm, suitable for wood, fiberglass or metal door. Easy to install, the door viewer can be replaced within 5 minutes without tools. <br>2、Precise thread casting, easy to install, the length can be adjusted properly, anti twisting, anti-skid and anti-pry, protect your home from burglary and home invasion. <br>3、The 220-degree viewing angle provides security for identifying visitors from behind the locked door, and you can easily view the entire surrounding area of people standing outside. <br>4、The inner wall is finely butted with thread, safe and without danger, which can effectively prevent thieves from prying and destroying door viewer with tools, more convenient to use. <br>5、A sturdy and heavy duty viewer cover increases your safety. After cover the cover, visitors outside cannot see through the viewer into your home, providing protection for your safety.1. Please allow 0-2 cm error due to manual measurement. Thanks for your understanding. <br>2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.1 x Door Viewer