Key Graphing products cling by static only to most glass-like surfaces such as dry-erase boards and windows. Use dry-erase markers to easily write on and wipe off the grids. Easy to handle and store. Great hands on use for students. Use over and over again. Size: 2' x 2'. First Quadrant Static Cling Grid In this grid x and y are positive. 12 x 12 squares. 2' x 2'.