Pentel of America， Ltd. Products - Lead Refill， 3H Hardness， .5mm， 12/TB， Black - Sold as 1 TB - Super Hi-Polymer Leads are designed for automatic pencils. Made with a patented manufacturing process that provides greater lead strength， a darker line and m<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Sold as 1 TB </span></li><li><span class="a-list-item"> Manufacturer: Pentel of America， Ltd. </span></li><li><span class="a-list-item"> Total percentage of recycled content: 0 </span></li><li><span class="a-list-item"> Post Consumer Waste: 0 </span></li><li><span class="a-list-item"> Country of origin: JP </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/11S7YV3katL.jpg" noproxy>