Door Knocker Viewer, 4 In. With 1/2 In. Bore 160 Degree Viewer

4 Inches High X 1 3/4 Inches Wide; Ships With 1/2 Inch Bore,160 Degree Door Viewer; Mounting Hardware: One 7/8 Inch Length Screw Included; Fabricated With Die Cast Zinc; Satin Nickel Finish.