The storage shelves are excellent choices for both residential and commercial storage, providing plenty of space to keep all items neatly organized. Sturdy material: The storage racks consist of steel frames and engineered wood boards. The steel frames guarantee sturdiness and stability, while the engineered wood offers strength, stability, and resistance to moisture.Strong load capacity: Thanks to the thick material and boltless shelving design, the racks have a supreme load capacity.Flexible storage: Each shelf can be divided into two separate small racks. Also, the layers are height adjustable. Thus, the shelves provide ample storage space for all items you want to store and always keep your space neat and well-organized. Note:Each product comes with an assembly manual in the box for easy assembly. Warning:In order to prevent overturning, this product must be used with the wall attachment device (delivery does not contain the wall attachment device). This product ships in approximately 1 days