These Melannco Square Shelves can be used individually or combined for a unique geometric display. They are designed to provide a practical and stylish addition to just about any room. You can place this set of black shelves on a table or hang them on a wall. The necessary hanging materials, as well as a convenient template, level and instructions, are also included. All three of these wood shelves are in different sizes and support different weights. You can use them to show off keepsakes, such as collectibles or photos. They also can effectively display books or other items. They are made of sturdy MDF wood and have a sophisticated black finish. The large measures 9x9-inches, medium measures 7x7-inches and the small measures 5x5-inches; holds up to 12 lbs., 10 lbs. and 8 lbs., respectively. This set of shelves will hang flush against the wall. Each shelf features 2 hanging hardware brackets. Clean with a dry cloth when needed.