Half Dome Safety Mirror, Rim Material Rubber, Mirror Material Acrylic, Backing Material Galvanized Steel, Diameter 18 in, Length Not Applicable, Width Not Applicable, Viewing Angle 180 Degrees , Mounting Bracket Type Mounting Bracket Kit, Approximate Viewing Distance 150 ft, Legend Not Applicable, Includes Mounting Hardware No, Mirror Environment Indoor/Outdoor, Dome Height 7 1/4 in, Includes Not Applicable, Mounting Location Wall/Ceiling, Panel Length Not Applicable, Panel Width Not Applicable