Marks-A-Lot - Desk Style Dry Erase Marker, Chisel Tip, Black, Dozen 24408 (DMi DZ Bold, low-odor ink provides high visibility from a distance. Marks on whiteboards, glass and other nonporous surfaces. Wipes off easily with a dry cloth or eraser. 3/16" durable chisel tip marks in a variety in line widths.