Heritage Arts white Masonite drawing clipboards are made of extra-rigid 4 mm-thick, tempered Masonite with cut-out handle, smooth edges, and firm spring clips. White surface front and back with black 1" grid lines and 1/4" hash marks. Rubber band included with each art clipboard to hold paper securely in place. Art sketch boards available in 3 popular sizes. Great sketching clipboards, portable drawing boards. Alvin artist sketch boards are perfect for drawing and sketching on the go! E-MAIL FOR QUANTITY DISCOUNT PRICING!