This classroom set includes 12 durable magnetic lap boards that are dual sided, plain/lined white and 9" x 12". Also included are 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 and Conform to ASTM D-4236.