Sharpie Fine Black Permanent Marker 1.0mm, Black - 5 Pack. Sharpie Fine Permanent Markers allow you to mark on almost any surface including glass, plastic, wood, metal ,vinyl and more. Each marker contains alcohol based, non-toxic ink which is deep and bold. There are 5 markers in this pack. Each marker has a 1.0 mm bullet nib for easy writing. The alcohol based, non-toxic ink is permanent on most surfaces. You can easily keep your marker handy thanks to the pocket clip. These markers contain bold, black ink. They won't dry out if you accidently leave the cap off for half an hour, simply recap and let the marker recover overnight.