These 90° Dome Mirrors present a new dimension in safety and security. Dome mirrors provide collision prevention and surveillance in two-way intersections in hospitals, industrial warehouses, retail and commercial facilities. One large dome warehouse mirror does the work of at least two conventional mirrors. These security mirrors will add safety to your facility. The 90° Dome Mirrors are 1/4 of 18", 26", 32" or 36" in diameter with a foamed back that provides strength and mounting support. Mounting hardware is included.