Durable electric stapler with patented cartridge stapling technology staples up to 90 sheets. Staple 5,000 times before replacing the staple cartridge. Each new cartridge replaces worn parts. Flat Clinch technology reduces paper stacks by 30 percent. Low-staple indicator alerts you when you need to reload. Stapler reloads from the front. Extremely quiet, low-vibration operation is designed to perform at least 500,000 stapling operations.