Royal Brites Book-Fold Foam Board folds in half for easy storage. It is lightweight, sturdy and easy to handle. The board size is 12" x 18" open and 12" x 9" closed. Great for oversized cards, photo collages, signs, crafts, book reports and more. Smooth surface that is perfect for markers, paint markers, glues and embellishments. Folds in half for easy handling and storage. Suitable for screen printing, framing, mounting, exhibits, prototypes and displays.