VISIBILITY - This antique peephole has a wide angle of 200, providing crystal clear visibility and increased security at the front door with its integrated cover. Easy to install - This peephole is Comes with easy to understand installation instructions. Easy to install - The peephole comes with easy to understand installation instructions and can be easily screwed into the hole. Top quality - Special materials have been selected to ensure the top quality of a real glass peephole! VERSATILE - Thanks to its special design, our peephole can be installed on doors with a minimum thickness of 35 mm and a maximum thickness of 60 mm. Simple - Anyone can use this door peephole intuitively. Thanks to the robust real glass surface, there is no risk of damage.