Sold as 1 Dozen. Allows for precise writing on small and large board formats and is perfect for calendars. Perfect for whiteboards in the office, classroom, home or commercial environment. Quality, non-toxic, low odor ink that has a bold color laydown, works on all dry erase surfaces and dries quickly. Built-in eraser cap allows for quick and easy corrections while using. Contoured marker cap shape prevents the markers from rolling off any flat surface or tray.