Durability at its finest, the Rapid 5050e staples at least 500,000 times Staples up to 60 sheets at a time. Stapler includes one cartridge with 5,000 staples. Patented cartridge design includes a new driver head, the most used part of the stapler, with each new cartridge. Removable cover design allows easy access to cartridge for replacement. Includes an adjustable paper depth guide (up to 5") so it's easy to choose how far the staple is positioned from the edge of the paper. SuperFlatClinch™ technology tightly flattens the staple reducing papers from curling up at the edges to form neater paper stacks. Extremely quiet and low vibration operation. An indicator light illuminates red to conveniently let you know when there are no staples in the cartridge.