The FLEXIMOUNTS 24 x 72 -inch Wall Shelf is made of heavy gauge cold rolled steel. It can safely hold up to 800 pounds totally. The low-profile bracket design of this FLEXIMOUNTS wall shelf, in a 4-pack, gives the garage, small pantry or kitchen more space. The item comes with all necessary harewares. High quality screws provided. All hardwares have gone through strict tests. In order to help one-person DIY installation, Fleximounts designs the template to help mount holes and bubble level to help get perfect horizontal loctation. The units can be mounted side by side or stacked one above the other. The versatile design gives users a variety of storage options with this shelf. Fleximounts wall shelf is suitable for securing to either wall studs or solid concrete wall. Fleximounts garage wall racks come with five different sizes to help you to get the best fit: 1'x3'; 1'x4'; 1'x6'; 2'x4'; 2'x6'. Features: 1. Easy one-person installation with all hardware included. 2. Installation Template helps mount holes. (Assembly needed DIY project) 3. Bubble Level helps get perfect horizontal loctation. 4. More Sturdy and Stable: the buckle design with velcros prevents the brackets from falling or bending. 5. Heavy gauge steel construction provides safety loading up to 800lbs totally. 6. Suitable for securing to either wall studs or solid concrete wall. Specs: 1. Dimensions: 72 in. W x 24 in. D 2. Weight capacity: Up to 200 pounds per shelf 4. Material: Heavy gauge powder-coated steel wire 5. Color: Black Package Includes: 2x6 wall shelf (2 packages with 16 shelves received measuring 1x3 each, assembly required). Hardware kit (Assembly needed DIY project) Items pictured on the racks are not included.