Raise flannel-board activities to new heights with this magnetic-backed flannel board that quickly sticks to any metal surface¡­.including classroom whiteboards. Large 20" x 27" felt surface works with felt pieces and magnetic letters, plus you can extend action from the flannel board out onto the whiteboard, incorporating spelling and math activities. Rolls up for easy storage. Put 2 together for a super-sized (40"x 54") flannel board!