Improved structural strength: a carbon steel frame provides robust balance and longterm deformation resistance. it stays stable in moistureprone environments and offers reinforced support for storage without adding unnecessary weight. Smart space expansion: designed for height adaptability and efficient use of vertical space. it increases undersink storage capacity and delivers versatile organization for any sink setup. Sink cabinet compatibility: tailored for bathroom corner utilization, helping to transform sink cabinets into organized zones and integrate smoothly with existing structures. Improved accessibility system: includes expandable hooks and adjustable dividers, enabling categorized storage in pullout drawers and improving undersink clutter management. Use scenario: under kitchen or bathroom sink, store cleaning supplies, sponges, tall bottles, and small tools with easy access through pullout drawers and adjustable dividers. Use scenario: in a bathroom vanity cabinet corner, organize cosmetics, toiletries, medications, and grooming items with a spaceefficient layout that fits existing cabinetry. Use scenario: in a laundry or utility room under a sink cabinet, keep detergents, stain removers, brushes, and small tools orderly and reachable.