Swingline 502e Desktop Cartridge Electric Stapler is protected by durable plastic housing & is ideal for desktop use, in a mailroom & other office environments. Patented cartridge design includes a new driver head, the most used part of the stapler, with each new cartridge. Each cartridge holds 1,500 staples & can staple up to 25 sheets at once. Convenient spring loaded lid opens upward for easy access to the staple cartridge. LED guide shows where the staple will fasten. Flat clinch tightly flattens the staple reducing papers from curling up at the edges to form neater paper stacks. Extremely quiet & low vibration operation is convenient when having to staple jobs at your desk or in common areas. Stapler includes one staple cartridge. Precision Operation-LED Guide illuminates the spot where the staple will be inserted. High Capacity Stapling: No; Flat Clinch Plate: Yes; Tacking: No; Staple Capacity: Cartridge (1,500 Staples).