Strength &amp; Deep &amp; Smooth -Uni-ball Extra Fine Diamond Infused Pencil Leads， 0.9mm-2B-[Nano Dia]36Leads x 3 Pack/Total 108 Leads<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"> Uni develops the lead of the top quality </span></li><li><span class="a-list-item"> Intensity of the lead was sharply strengthened by blending the particles of a diamond. </span></li><li><span class="a-list-item"> Since particles have aligned by high density， it can write distinctly still more deeply </span></li><li><span class="a-list-item"> And it can draw more smoothly. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51RSz7-ldhL.jpg" noproxy>