Defender Security U 9917 Giant Screen Viewer, Requires a 1-3/4 in. Hole, High-Impact Plastic, White N/A Imported Used for arm's-length viewing on nearly 2 in. of giant screen Installation requires a 1-3/4 in. hole in door; features a 160 deg. view angle White in color High-impact plastic construction Used for arm's-length viewing on nearly 2 in. of giant screen Installation requires a 1-3/4 in. hole in door; features a 160 deg. view angle White in color High-impact plastic construction