2 in. Leg x 1/2 in. Crown 15-Gauge Hardwood Flooring Staples (7,700 Bulk Pack) Compatible with Porta-Nails model 472A (not included) stapler or any flooring stapler that accepts 1/2 in. crown and 2 in. leg 15-gauge staples Use with 1/2 in. to 33/32 in. solid wood flooring 2 in. Legs x 1/2 in. crown 15-gauge metal construction to help prevent the nail from bending during installation Bulk Pack of 7,700