The Grainger website features a wide selection of facility identification letters and numbers for commercial and industrial use. These durable plastic, metal, or photopolymer letters and numbers can be used for labeling buildings, rooms, equipment, storage areas, and more. Options include bold block letters and numbers in sizes ranging from 1 inch to 24 inches tall, available in a variety of colors including black, white, red, yellow, green, and blue. These identification products are weather, chemical, and UV resistant. Grainger offers fast shipping on all in-stock items.