ZIG Memory System Calligraphy Dual-Tip Markers 6/Pkg - Perfect for all your paper crafting needs! This package contains six 6-3/4 inch double sided metallic markers with pigment ink in a variety of colors (one side has a 2.0mm tip and the other has a 3.5mm tip). Conforms to ASTM D 4236. Acid free. Imported.