Quartet Dry Erase Markers, EnduraGlide, Super Fine Tip, Assorted Colors, 4 count (Pack of 4) Non-toxic and low odor ink dries fast and erases clean; 4 pack of assorted colors includes black, red, blue and green Super fine tip is ideal for use with dry-erase calendar and planner boards; roll-resistant cap keeps dry-erase markers securely in place EnduraGlide liquid ink dry-erase markers have a patented 3 chamber design to consistently deliver ink flow; see-through ink gauge clearly shows how much ink is left before needing to replace Pack of 4, total 16 markers!