mr. pen 0.5 millimeter lead refills for mechanical pencils, pack of 600 mr. pen <p>mr. pen mechanical pencil lead pack is made with high quality hb lead equivalent to #2 pencil. the package includes:</p> <ul> <li>0.5 mechanical pencil lead refill</li> <li>600 mechanical pencil lead in 4 containers (150 lead/container)</li> <li>high quality, hb lead refill equivalent to #2 pencil</li> <li>works with any standard 0.5 mechanical pencils</li> <li>perfect for everyday writing, taking tests, drawing, etc</li> </ul>