Set of 4 - Sign Standoff Hardware Silver Aluminum - 3/4 in diameter x 1 in height by Elegant Signs Set of 4 - Includes SCREWS, CLEAR RUBBER WASHERS, and LIGHT DUTY PLASTIC ANCHORS SIZE = 3/4" Diameter x 1" Tall - SATIN Finish - SOLID ALUMINUM mounts These PREMIUM Sign Standoffs can hold panels up to 1/2" thick - Use with GLASS, METAL, ACRYLIC... Use these fixings with LIGHT or HEAVY sign panels. For heavy panels use more standoffs and heavier duty anchors. Only light duty anchors included.