Magnetic dry erase lap board is great for classroom games, math lessons, reminders and all assignments. Durable magnetic lap boards are 9" x 12" and can be used with all dry erase markers and any magnetic eraser, or magnets to help organize your supplies. An environment friendly way to learn, as you just write, wipe off and re-use with no waste. Two sided, plain on both sides. Pack of 4 boards.