This shelf is made of high-quality steel, with a load capacity of up to 1,100 lbs. per layer, and a total load capacity of 4,400 lbs. for the four-layer design, which enhances the load-bearing capacity, safety and stability. The height of the shelf can be freely adjusted according to storage needs, without the need for professional tools, and is easy and quick to assemble, which can flexibly adapt to diverse storage space needs. The design pays attention to details and beauty, and the bright blue and orange color combination is stable and durable. It is suitable for commercial warehouses, workshops, offices and homes, with a stable structure and safe use.