Liquid ink dry-erase markers continuously deliver consistent, smooth and bold color on any dry-erase board surface. The unique patented 3-chamber design maintains ink flow and the see-through ink gauge prevents you from running on empty. The low-odor, non-toxic, quick-drying ink erases cleanly. Chisel tip. 4 color set includes Black, Blue, Red and Green. 12 Marker set includes Black, Blue, Red and Green.