This 4-tier storage rack features a sturdy steel wire structure to ensure durability and can evenly carry up to 500 kg. The height of the shelf can be adjusted according to your actual needs, providing flexible storage space. Equipped with industrial-grade casters, it is easy to move between different locations for a convenient storage experience. You can also choose to assemble it into a fixed shelf, just use the leveling feet included in the package. Two assembly options fully demonstrate the personalization of this shelf. It can be easily assembled without tools and can be disassembled into multiple independent shelves, making the installation process simple and quick. With dimensions of 35"W x 18"D x 72"H, it is ideal for rooms such as kitchens, storage rooms, bedrooms and living rooms.