Cartridge stapling gives you trouble-free stapling that is needed for frequent stapling. Staple cassette is designed for use with the Rapid 5050e Electric Stapler. Because the driver blades are built into each cartridge, the most crucial wear parts are replaced every time you replace the cartridge, providing reliable performance over time. Easy-loading cassette ensures precision stapling. Each staple fastens up to 25 sheets. The crown width measures 1/2". The leg length measures 5/32".