mr. pen- staples, heavy duty staples, 3600 pc, 60 sheet capacity staple, 3/8 inch length, staples for stapler, staples office supply, office staple, paper staple, one touch staple, strip, large staple mr. pen <p>mr. pen heavy duty staples can be used in standard heavy duty staplers but it’s best to be used with <strong>mr. pen heavy duty 100 sheet stapler and mr. pen 60 sheet stapler</strong>. ideal for home, office, or school. <br /> <br /> the package includes:</p> <ul> <li>3600 heavy duty staples: 100/strip, 1800/box</li> <li>staples up to 60 sheets of paper (23/10), 3/8” leg length</li> <li>made for jam-free stapling</li> <li>compatible with standard heavy duty staplers</li> <li>best to use with mr. pen heavy duty 100 sheet stapler and mr. pen 60 sheet stapler</li> </ul>