Feeling safer at home just got easier with these Othmro door viewers! The 200-degree viewing angle is massive - you can see practically your whole porch without having to press right up against the door. They fit doors between 55-90mm thick (about 2-3.5 inches), which covers most standard interior and exterior doors. The green bronze metal construction looks classy and durable, not like cheap plastic peepholes that break easily. Installation is straightforward - just a 16mm hole to drill and you're set. The privacy cover on the inside gives you peace of mind that no one can peek back through when it's closed. You get two in the package, which is perfect for your front door and back door, or maybe an apartment with multiple entrances. The image quality is surprisingly clear and bright, even in lower light conditions. Seriously, for the price, these provide such valuable security and peace of mind, especially if you live alone or have kids who answer the door. Much safer than just opening the door to see who's there! The metal construction means they'll last for years without getting loose or foggy like cheaper versions. Easy to install with basic tools - no need to hire a handyman.