The same sturdy, lightweight stock as our corrugated project boards, these slotted headers attach easily and securely for prime, attention-grabbing display space. Smooth, bold color surface has a slightly glossy finish that easily accepts markers, crayons, paints and adhesives. Two-Sided header – Black on one side, white on the other. Measures 10″ high x 36″ wide. Fits our 18″x48″, 24″x48″ and 36″x48″ 1 ply corrugated project boards. Made in USA. Set of 24.