Color Assortment 1 Ply Corrugated Headers create attention-grabbing displays! 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. Color assortment includes 2 each green, yellow, orange and 3 each red, blue, black, sky blue, pink and purple. Back is brown Kraft. Measures 36" wide x 10" high. Fits our 18"x48", 24"x48" and 36"x48" 1 ply corrugated project boards. Pack of 24 headers.