These Tolsen AirXT pneumatic staples are designed for precision fastening tasks, coming in a pack of 10,000 pieces. Each staple features a 21GA gauge with a 16 mm leg length and a 12.7 mm crown width, while the wire thickness measures 0.9×0.65 mm. Made from galvanized steel, these fasteners are resistant to corrosion, making them a reliable choice for various assembly and upholstery projects. They arrive in a robust colored box that keeps the staples organized and protected from damage during storage.