UltraBoard Classic Full CasesUltraBoard Classic Full Cases is a lightweight, rigid foam board with a polystyrene core and clay coated faces. The classic mounting and presentation surface easy to cut, easy to print on, and built for fast, professional results. Features & Benefits Smooth clay coated face sharp, vivid prints; accepts pen, marker, paint, and adhesive Rigid polystyrene core strong yet lightweight Easy to cut and shape score and snap with a utility knife; clean edges