Copic Markers Sketch， Empty Marker<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Sketch empty markers are available for using with custom colors</li><li>Refillable markers and replaceable nibs</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/31ziNJIHwDL.jpg" noproxy>