Non-porous surfaces. Front side is lined and the back is a blank white dry erase surface. Here is the board you have been looking for. It doesn't just have a few multiplication problems but 144 of them from 1 x 1 up to 12 x 12. It features our "goof-proof" dry erase surface with permanent wheels etched and locked onto the surface. All edges and corners are rounded for safety and durability. . Unbeatable Markerboard People quality. - item # MULTC1116-2x
11" x 15.75" x 1/8" 12oz each In Stock