Copic Markers N4-Various Sketch， Neutral Gray<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Various ink refills are available in all 358 colors and are compatible with all marker styles</li><li>Angled， dropper style tip for easy refilling of markers</li><li>Alcohol-based ink is pemranent and non-toxic; dries acid free</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31hX13oMHKL.jpg" noproxy>