Constructed from sturdy lightweight 1-ply corrugated fiberboard with overlapping side panels that make transporting the board easy. The smooth surface has a matte finish that easily accepts markers, crayons, paints, and adhesives. Back of board is brown kraft. Measures 15" high x 20" wide overall—side panels measure 15" high x 6" wide, and the center panel measures 15" x 8" wide.