The wire shelves are made from carbon steel which can reach max 40 LBS load capacity. Wires are sprayed with white 80-120µm coating thus avoiding corrosion, rust, and hurting or scratching on your hands/clothes. The ventilated wires design promotes air circulation to keep items fresh, making the rack perfect for storing daily necessities in laundry rooms, linen closets, and basements.The wire wall shelves are widely applied with various decorations whether in your walk-in or reach-in closet, garages, laundry rooms, pantry spaces, utility rooms, craft rooms, and more. The laundry shelf comes with detailed illustrated instructions and fastener accessories required for mounting to concrete and wooden walls to make sure the shelf is firmly installed and does not shake or fall easily.