This class pack includes 12 durable magnetic masonite lap boards that are dual sided, plain white on one side, lined on the other, and measure 9" x 12". Also included is a box of 12 pocket-style dry erase markers with bullet tips in black and a 12 pack of 2" multi-purpose erasers. An environment friendly way to learn, as you just write, wipe off and re-use with no waste. Markers are AP Certified, Conform to ASTM D-4236.