Provide new dimensions in safety and security.360° Full Domes for 4-way intersections.180° Half Domes for 3-way intersections.90° Quarter Domes for 2-way intersections.Dome mirrors provide collision prevention and surveillance in industrial warehouses, commercial facilities, hospitals, clinics, retail locations, etc. Dome mirror views allow personnel and others to move safely through intersections. Safety engineers specify Dome Mirror views for industrial applications. FOB Shipping Point.