Add an eco-friendly shelf to any whiteboard with the Expo Ledge. This durable organizer easily mounts with the included adhesive strips or a magnetic strip (both included) to dry-erase boards. The shelf is made from a high percentage of recycled material. The Expo Ledge includes three, certified AP nontoxic markers with one each in red, blue and black. Each marker has a chisel point tip for broad or fine lines. The low-odor marker formula is perfect for school and home use and conforms to ASTM D426