Rexel Mercury Heavy Duty Staples provide a high quality, reliable solution for all your heavy duty stapling needs. Stapling up to 120 sheets of paper (80gsm), they are ideal for larger stapling tasks at home, in the office or at school. Designed for use with the Rexel Mercury Heavy Duty Stapler for accurate, trouble free stapling. Made from high quality stainless steel and supplied in a pack of 2500 staples.