Powerful staples for a powerful stapler. As with all other products, you should choose staples that meet your needs. This is especially true when you need to staple a large stack. The reason is obvious. The wrong staples are not as strong because they are not made to the required thickness. They might still get the job done and staple 120 sheets together. But how likely are they to bend? With each bent staple, you have to use another one or even reprint a few top sheets of paper, which is a waste of time, money, and resources. Leitz 5579 staples will not let you down. These high-end staples made from quality metal can penetrate a stack of 120 sheets and hold them together securely. Save time, money, paper, and staples – with Leitz.