Dry Erase 13mm Quadrant Lap Board

Dry-erase board features a blue grid with a 13mm square. Bold lines appear every 5th row or column. Plain dry-erase on the other side.

Available in small (23 x 30cm, 15 rows by 20 columns) and large (30 x 45cm, 20 rows by 30 columns), in singles and in packs of 12