White System Dry Erase MarkerFormulated to wipe from dry erase board without leaving residue. Use for marking on white boards and most non-porous surfaces, including glass. Unique patented thumb cap lets users release the cap with one hand. Long-lasting markers feature durable plastic construction. Finish contains Microban® to inhibit the spread of odor- and stain-causing bacteria. Buy 12 black, get 2 blue and 2 red free. Marker Type: Dry Erase; Assortment: 2 Blue;2 Red;12 Black; Color(s): Assorted.