This4-Tier Heavy Duty Steel Shelving Unitisa storage shelving solution that is a functional masterpiece. Stack up to 250 pounds of weight on each white shelf and adjustable shelves allow you to change the configuration as your storage needs evolve. Combine multiple units to create a customized storage wall. This shelving unit can be used in the kitchen to store accessories or in the pantry to hold food and snacks. Equally important, no tools are required for assembly.