For whiteboards and other nonporous surfaces These markers wipe off easily with a dry cloth or eraser. Marker cap clicks when closed and has a special rib design that prevents rolling. They come with ventilated no-choke child-safe caps, too. Quartet Markers & Highlighters part of a large selection of office supplies. Quartet(R) Dry-Erase Markers, Broad Point, Black, Pack Of 12 is one of many Dry-Erase & Wet-Erase Markers available through Office Depot. Made by Quartet.