rOtring Rapidograph Ink Capillary Cartridges， Black (S0194640)<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"> This is an easy-flowing， high opacity ink with excellent adhesion， suitable for tracing paper， vellum， drawing paper and lineboard. </span></li><li><span class="a-list-item"> Ink is smudge-proof when dry. Won't erase with rOtring B20 and B30 erasers. </span></li><li><span class="a-list-item"> It's lightfast and suitable for all forms of reproduction. </span></li><li><span class="a-list-item"> Ink has high color purity. Colored inks can be mixed with one another. </span></li><li><span class="a-list-item"> Limited warranty: guaranteed for 2 years from original purchase date against defects in materials or workmanship. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31OBZgBt7xL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41lINRcAPxL.jpg" noproxy>