Swingline top-quality, heavy duty staples provide clean, consistent stapling you can rely on. The sharp chisel points offer easy penetration and reduce jamming on important projects. With 100 staples per strip, they are adaptable in all heavy duty staplers. The Swingline A7079394E S.F. 39 Heavy Duty Staples have a 0.25 - Inch leg length and can staple up to 25 sheets of 20 pound paper at a time. Available in a 5,000 count box, you will have plenty of staples to complete even the biggest stapling jobs. Swingline, a leading brand in workspace tools for the business, home and mobile office for over 80 years continues to introduce new staplers, sharpeners, punches and trimmers that solve common workplace frustrations and increase productivity. With unmatched quality, durability and performance, Swingline products are truly designed for the way you work!