Economical, unframed lap board features a blue XY axis dry erase grid on one side and plain dry erase on the other. Bold lines separate board into quadrants each 14 squares by 10 squares; total grid is 28 squares by 20 squares. Individual squares measure 3/8" x 3/8". Boards feature non-ghosting dry erase surface with rounded corners and smooth edges for comfort and safety.
- Durable hardboard backing is warp and chip resistant.
- Measures 9" x 12" x 0.125"
- Class pack of 24.