No need to drill holes in the board and brackets can slide on the shelf, so the distance is variable. Unfinished wood board for you can paint them any color you want.Wooden floating shelves can be hold weight up to 30 lb each shelf. You can display any small items you want, like candles, picture frames, collectibles, books, toys, artwork, trophies, small plants, Kitchen supplies and morePackage includes 3 durable and lightweight paulownia boards, 6 U metal brackets, 12 plastic anchors, 12 screws and 1 installation manual. Board Size: 15.7×4.7×0.6 inches. Screw Size: 8x30 mm