Polished Solid Brass Housing And Glass Lens. Fits Doors 1-3/8 Inch To 2 Inches Thick. Offers 160 Degrees Lens Angle For Wide Viewing. National catalog model No. V805. This viewer allows a user to identify visitors from the security of a locked door. Viewer adjusts to fit doors from 1 3 8'' to 2'' thick. Offers 180 lens angle for wide viewing. 1 per pack. No. N162362: Brass No. N330172: Satin nickel No. N336115: Antique bronze Offers 200-Degree lens angle for wide viewing Includes four precision-ground glass lenses Solid brass housing Viewer adjusts to fit doors from 1-3/8-Inch to 2-1/8-Inch thick.