Rexel Optima 56 Heavy Duty Staples provide a high quality, reliable solution for all your stapling needs. Stapling from 2-40 sheets of paper (80gsm), they are ideal for regular and heavy duty stapling tasks at home, in the office or at school. Designed for use with the Rexel Optima Grip, Optima 20 and the Optima 40 manual and electric staplers for accurate, jam free stapling. Made from high quality steel and supplied in a smart, aluminium tin containing 3750 staples.