TANK Whiteboard Markers. Designed for high visibility and ease of use, these markers feature a bold, extra-large tip that produces thick, vibrant lines, ensuring your writing and drawings are clear and easy to read, even from a distance. Ideal for classrooms, boardrooms, and large meeting spaces, these markers are essential tools for effective communication. The quick-drying, low-odor ink formula prevents smudging and ghosting, leaving your whiteboard clean and ready for the next use.