SANFORD-Sharpie Ultra Fine Tip Marker. Sharpies have been one of the most popular permanent markers ever made. These markers are known for quickly drying, and being permanent and water resistant on most surfaces. This package contains five assorted Ultra Fine Tip Permanent Marker (2 black, one each of red, blue, and green). Nontoxic and conforms to ASTM D4236. Made in USA.