National Hardware N330-712 V805 Door Viewer in Satin Nickel,5/16" x 2-1/4"
Authorized Replacement for Stanley Hardware Stock #N330-712. Used to allow a user to identify visitors from the security of a locked door. Fits doors 1-3/8 inch to 2 inches thick. Offers 160 degrees lens angle for wide viewing. Requires 1/2 inch hole.