Swingline Premium Staple Cartridge, 5000 Staples/Cartridge (50050) ULTIMATE HIGH VOLUME CONVENIENCE  This standard staple cartridge eases the process of continuous high volume stapling and provides proven, strong Swingline staples for your toughest tasks. SHARP CHISEL POINT FOR FEWER JAMS  Staples with precision-engineered points work cleanly pierce paper every time. Distinctive chisel points mean fewer frustrating jams and interruptions. SECURES 30 SHEETS OF PAPER  These staples are designed to serve higher-production fastening needs. With  length legs, they can securely fasten up to 30 sheets of paper. 5,000 STAPLE CARTRIDGE - Convenient cartridges are easy to replace. Each cartridge contains 5,000 staples, so you can complete your high volume projects without stopping for refills. WORKS WITH SWINGLINE STAPLERS - Swingline backs this cartridge with a 100% performance guarantee when used in these Swingline electric staplers: 69008 High Volume, Zephyr 690, and 520E.