Heavy-Duty Construction: Made of heavy-duty carbon steel, rust and corrosion resistant for long-lasting durability. Designed to withstand tough conditions. Large Storage Capacity: Features multiple storage forms, including spaces for 3*30lbs and 3 Saving Space, ensuring efficient organization and preventing sliding. Easy Assembly: Detachable design with high-quality screw nuts for quick and hassle-free installation. Every joint and nut fits perfectly for stable setup. Versatile Usage: Suitable for both indoor and outdoor use, ideal for storing various cylinders such as gas, oxygen, nitrogen, and acetylene. Wide applicability for different environments. Additional Convenience: Comes with high-performance hooks for hanging extra tools, providing added convenience and efficiency in your workspace.