The Conceal Double Wall Book Shelf from Umbra is like nothing you have ever seen before! This floating bookshelf becomes invisible behind a stack of books. Constructed of powder-coated steel, it screws directly into a wall stud with included hardware, so all you need is a screwdriver. It holds up to 15 pounds of books with a maximum stack height of 8 inches. The Conceal Book Shelf is also available in a single stack configuration and a towel shelf. Winner of a variety of design awards, it's an innovative, inspirational and imaginative way to display and store your books. Patent-pending design by Miron Lior for Umbra - the worldwide leader in casual, contemporary, affordable design for the home.