The Incredible Art Board provides a long lasting paper stretching surface for watercolor artists. It has a unique soft surface that can be taped repeatedly without tearing and is self-healing when stapled. The Incredible Art Board will not buckle, bend or warp and both sides of the board are equally usable. It s made from a very light-weight material, so it is ideal for use in the field. The small board weighs 13 oz.; the larger size weighs 26 oz.