Make everything more fun with dry erase boards. Economical, unframed lap board with graph grid on one side and a plain dry erase surface on the other. It is ideal for doodling, math or handwriting practice, and more! Bright white write-and-wipe surface is non-ghosting. Practice graphing. Board Type: Dry Erase Graph; Board Width: 12"; Board Height: 9"; Surface Material: Melamine.