Engineered for impressive performance. Legendary Bostitch PowerCrown staples have a unique crown peak at the top of the staple that flattens when driven down during stapling. Forced outward, the legs are better supported resulting in more stapling force and reduced buckling. Made from superior quality high carbon steel wire with finely chiseled points for maximum sheet capacity. Staple Collation: Full-Strip Staples per Strip/Cartridge: 210 Sheet Capacity: 45 Leg Length: 0.38".