National Security Mirror - NSM IC26 - Circular Acrylic Convex Security Mirror (indoor), 26" diameter with black ABS backing 160 degree view All convex mirrors are equipped with adjustable swivel mounting bracket for easy installation Completely sealed to keep out debris Entryways, halls, aisles, and corridors, driveways, traffic intersections and retail theft protection Typical uses: office buildings - retail (theft protection) - hospitals - warehouse - parking garage