Flipside Products Two Sided 1/2" Graph Dry Erase Board, 11" x 16, Pack of 12

Graph and calculate on the same side of the board Quadrants each includes 10 squares by 10 squares, total grid is 20 by 20 Board measures 11" x 16 with 1/2" x 1/2" squares and 11" x 5-1/4" plain work space Pack of 12