This set of 3 U shape display shelves are made of MDF. It's easy to install in a few minutes. You can hang a set of three to create library, display and highlight a favorite collectible. Minor assembly is required. Approximate Dimensions: Large: 17 x 4 x 4". Medium: 13 x 4 x 3.5". Small: 9 x 4 x 3". *Due to monitor variations colors may appear slightly different.* Brand:EWEI'S HomeWares, We guarantee you'll be happy or we guarantee your money back.