290 Degree Wide Angle Peephole Door Viewer Scope Black W/Chrome and Gold Metal This Door Viewer easily installs in 5 minutes. You clearly see who is at the door from the safety of your home Maintenance Free ,assures a clear 290 degree full view Replaces Conventional Peepholes Fits doors from1 1/4" to 2 1/8" door viewer is a high technology product, made with four precision glass lenses