This Itoya Switch Ultra Heavy-Duty Cassette Stapler has the capacity to staple up to 100 sheets of standard copier paper at a time. Each cassette contains 200 precision chiseled, surgical-grade metal staples to effortlessly and consistently drive through paper. Color-coded for easy size recognition ensures the right size staple for your specific paper binding need. This stapler switches between five interchangeable staple cassettes for maximum stapling flexibility.