Liyin Conceal Floating Bookshelf (large) Conceal floating book shelf by mounts to the wall and becomes invisible behind a stack of books The package include: one stainless steel bookshelf and two expansion screws Supports up to 15-pound of books; maximum stack height 8-inch Size: 5-1/2 by 7 by 6-1/2-inch; fits medium to large books Creative Furniture Conceal Floating Bookshell