Marks-A-Lot  Pen Style Dry Erase Marker Kit (23504) Dry erase ink wipes away from whiteboards easily with the felt eraser and spray cleaner Marks whiteboards and other nonporous surfaces Nontoxic formula is suitable for children to use Includes four markers, whiteboard eraser and bottle of whiteboard cleaner ACMI certified. Conforms to ASTM D 4236.