Easily cut poster boards with the Poster Shop Cutting Board! This innovative design assembles like a puzzle and can cut posters up to 28 inches! Simply piece the board together, snap the cutting guides into place and cut straight lines every time. This 10.75x24.25x2 inch package contains one self healing mat measuring 23x29 inches, three cutting guides and one cutting blade. WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. WARNING: Contains sharp edge and pinch points. Imported.