This is a "set" of US GI MIL Spec sew on Velcro Brand hook and loop fastener, 4 inches by 12 inches. The hook side is also known as the "sticky" or "rough" side. The loop side is also known as the "fuzzy" or "pile" side. You get both sides, 1 foot of each. 4 inch wide is commonly used for Uniform modifications for pockets, gear, rucks or whatever else might need Velcro. Manufactured by the Velcro USA Company.