Marks A Lot Pen-style Dry Erase Marker Value Pack, Medium Chisel Tip, Assorted Colors, 24-setNew formulation erases easily and cleanly. Improved color vibrancy and long lasting writing. Marks on whiteboard, glass and other non porous surfaces. Great for laminated planners and calendars. Sturdy pocket clip for portability. Cap can be left off for 24 hours without dry out. Safe to use at home or school. Low odor and non toxic. Value Pack24 for the price of 20! Marker Ink Type: Dry Erase; Marker Tip Type: Chisel; Marker Tip Size (text): Medium;