4-tier Metal Shelving Unit Adjustable Garage Storage Utility Rack Heavy Duty Shelves Organization Multipurpose Shelf Warehouse Basement Kitchen Living Room 31.5" W x 16.2" D x 63" H. It is a DIY adjustable shelf that can be disassembled, put together, raised, lowered, and assembled into various forms that fit in the desired space. This Metal Shelving Is Designed With Adjustable Connectors, You can freely adjust the shelf to various heights so that the items can be stored in any size. This 4-tier steel shelving unit is made of high-quality premium steel, each layer of metal shelf shall bear at least 300 pounds, and the total bearing capacity shall be more than 1600 pounds. The upper and lower parts of the industrial shelf are connected with reinforced connecting buckles to ensure the incomparable stability of the shelf. There are no nuts or bolts required, you can quickly assemble every stand-alone garage utility rack within 10 minutes alone. It Is Suitable For Use Anywhere As Storage, Garage, Warehouse, Basement, Kitchen, Living Room, Pantry, Closet, Office, Etc.