rOtring Isograph Technical Drawing Pen， Liquid Ink， 23 ml， Black<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"> Calligraphy nibs， crafted from the finest stainless steel and hand finished for a smooth， precision inking edge. </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"> Calligraphy nibs， crafted from the finest stainless steel and hand finished for a smooth， precision inking edge. Not for any use on skin， including tattoos. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41AnB5HkRML.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41IdaUcO5QL.jpg" noproxy>