HEAVY DUTY & STURDY – The 5 tier floor shelf is made out of steel including the boards. The premium steel can hold 350 pounds per shelf and a grand total of 1,750 pounds while looking classy. Stay worry-free because it’s durable, sturdy, and stable! MULTIFUNCTIONAL & ADJUSTABLE – With the Space-Saving Storage you can freely adjust the storage shelf to various heights to store items in any size so you may use it as a bookcase, garage storage, stocking parts, clothing or food, a countertop with storage, and more! EASY TO ASSEMBLE – For your convenience, our adjustable heavy-duty shelvings have an interlocking design to make it fast and easy for you! The box is ONLY 55lb, making it easy to carry. With the bolts & nuts-free design, it’s ready to use in approximately 10 minutes. You may refer to our instruction video to grasp how easy it is to assemble the multi-use storage racks! Side Note: a rubber mallet and a pair of gloves are included for your safety and convenience. MULTIPURPOSE SHELVES – The heavy-duty steel shelving unit can be used in many places such as your garage, kitchen, offices, warehouses, yard, living room, pantry, bedroom, basement, shed, workplace, and much more. It can also be used for many occasions such as storing your accessories, boxes, products, tools, organizers, books, cases, and much more! If you are unsatisfied with the product or if you have any questions about it, message us, and we will do our best to assist you. ENJOY YOUR STEEL SHELVING!