The peephole cover is made of copper material, resistant to rust and corrosion, which has long serving life. The peephole cover fits for most home security door viewer system. This door hole cover plate increases home security on entry doors. Features - Color: Golden -Material: Copper - Size: 5.50X3.00X0.50cm/2.16X1.18X0.20in -Application: Suitable for 14~16mm door mirror (16mm inner hole, fixed slot 19mm, outer diameter 30mm) - Made of copper material, door peephole cover has high hardness, nice toughness and is not easy to rust. - Door peephole cover can block from outside, increasing security on home entry doors. - With strong stability and durability, the peephole cover can be used directly to replace old or ones. - Peephole cover for front door is easy and convenient for you to install and use, can use double-sided adhesive paste. - Door hole cover is a practical door hole covering tool to protect your privacy from being peeped. Package list: 1 x peephole cover