Wooden shelves are attached to bent and welded metal frame. This industrial wall shelf accentuates rectangular shelves overlapping the frame. Wipe clean with a dry cloth. Organize and decorate with this 3 tier wall shelf that would add style and function to your industrial-themed home space. This item ships in 1 carton. Bookshelf is wall-mounted.. Can be hung horizontally using the keyholes; nails and screws not included. Suitable for indoor use only. This item ships fully assembled in one piece. Maximum weight limit is 20 lbs. This is a single black colored floating shelf. Metal wall shelf features 3 shelves. Industrial style.