Air-powered nail and staple gun. Used with small finishing nails to do finish work, or use with staples. Needs a compressor and hose to work. Takes 18 gauge brads. Staple sizes: 3/8" to 1 5/8". Brad Nail sizes: 3/8" to 2". DOES NOT COME WITH NAILS OR STAPLES - YOU MUST GET YOUR OWN.