Multi-layer iron racks have many functions and are more than just a simple storage tool. First, they can effectively distinguish different items and avoid clutter. Whether it is the seasoning bottles in the kitchen or the books and stationery in the study, multi-layer racks can keep them in order. Secondly, the multi-layer design of the rack can utilize vertical space for storage and fully save floor space. This is especially important in some small-sized families. In addition, multi-layer racks can be adjusted and expanded according to user needs, which is very flexible. For example, families with children can choose racks with wheels for easy movement and adjustment.