Door Thickness 1-3/8". Door Viewers Also Called Peepholes Which Consist Of A Lens And Cylinder Which Is Inserted Into A Door Allowing A View Outside. The Amount Of Visibility Is Determined By The Degree Of The Lens The Higher The Number The Greater The Visibility. Door Viewers Are Sometimes Incorporated With Door Knockers.
California residents: Prop 65 Warnings
This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to