Always provides a bold mark with patented three-chamber barrel. Even flow ink insures a consistent line quality and reduces beading. For use on dry-erase boards, ceramic, glass and other non-porous surfaces. See-through barrel gauge shows ink level. Low-odor, quick drying ink erases easily. Anti-roll cap. Marker Type: Dry Erase; Assortment: Black; Blue; Green; Red; Color(s): Assorted; Tip Type: Bullet.