This 5 layer storage shelves heavy duty is constructed of dent-resistant carbon steel tube, which is superior strength and durability. Total static max load weight is about 150 lbs. The standing kitchen shelf organizer rack is coated for preventing scratching and stain resistant. The freestanding metal rack is perdect for kitchen to store appliance; hold books and decorations or toys in living room and bedroom, kids room, also can be outside storage for gardening tools or plants.