Strong steel build: Heavyduty gas cylinder rack constructed from steel, with corrosion and rust resistance. Thickened and reinforced design provides maximum durability against chips and scratches for longterm use. Galvanized chain for secure retention: Includes a protective galvanized chain that tightly fixes the cylinder, preventing movement and falling. It will not slide out even if the cylinder is tilted. Ample storage space for 40 L cylinders: Designed to safely store 40 L cylinders, keeping them organized and accessible for easy storage and handling. Suitable for both outdoor and indoor use and maintains an orderly appearance. Easy, stable wall mounting: Features 10 mm diameter fixing holes for expansion screws, allowing the unit to be firmly fixed to a wall. No shelf assembly is required, enhancing stability and saving setup time. Use scenarios: Home garage or workshop: Mount on a wall to floor space while securely storing a 40 L cylinder for quick access during projects. Industrial or maintenance yard: Install along a wall in a service area to keep multiple 40 L cylinders organized, secure, and easy to reach, reducing clutter and risk of accidents. Outdoor storage area: Install in a sheltered outdoor space (e.g., tool shed or covered work area) to protect cylinders from damage while maintaining a tidy, professional layout.