Classically designed stapler with performance driven stapling mechanism and inner rail always delivers jam-resistant, accurate stapling.Metal construction and die-cast base provide maximum durability.Stapling capacity with Swingline S.F. 4 Premium Staples.Stapler opens for tacking ability.Anvil rotates for pinning ability to create temporary staples.Positive locking latch secures staple position.100% Performance Guarantee.