Heritage Arts Masonite portable drawing boards are made of extra-rigid 4 mm-thick, tempered brown Masonite with cut-out handle, smooth edges, and firm spring clips. Rubber band included with each art clipboard to hold paper securely in place. Art sketch boards available in 4 popular sizes. Great sketching clipboards, portable drawing boards. These artist sketch boards are perfect for artists that are on the go! E-MAIL FOR QUANTITY DISCOUNT PRICING!