Osburn - 12 x 18 - Handicap Parking Signs (R7-8) High Intensity Prismatic (HIP) Grade Reflective Compliant Aluminum Avery or 3M ASTM 4956 Type IV Reflective High Intensity Prismatic (HIP) Grade Sheeting .080 gauge 5052-H38 Allodized aluminum required by states, cities, counties and municipalities 2 each 3/8" round holes for mounting 10 year outdoor durability