The Optima 50 Electric Stapler is an automatic, high-capacity stapler engineered for quality & performance. Solenoid technology, which is three-times faster than most alternatives, helps you increase your productivity. A low-staple indicator alerts you when you're running low, & QuickLoad technology ensures easy reloading. Simply eject an empty staple magazine with the press of a button. Jam-free performance guaranteeduse with Swingline S.F. 4 Premium Staples or Optima High-Capacity Staples for best results. A value pack of 5,000 Optima High-Capacity Staples is included. High Capacity Stapling: Yes; Flat Clinch Plate: No; Tacking: No; Staple Capacity: Full Strip (210 Staples).