Durable Material: The utility storage shelf is made from quality MDF, durable veneer, and iron with a layer of coating. The metal frame holds the shelf strongly and firmly for years of service. Strong Load Capacity: The tabletop can bear up to 40kg 88.2lb. The middle shelf can weigh up to 18kg 39.7lb. The small shelf is capable of 13kg 28.7lb, and the wire basket & each S-shaped hook can bear 3kg 6.6lb respectively. For safety, please do not overload the shelf.