The Quantum Storage Systems GR48 Hang Bar is a sturdy metal accessory designed for use with shelving units. Measuring 48 inches in length, it can be easily installed onto the top shelf of the unit. The Hang Bar is specifically intended for hanging loads or items, offering an efficient use of vertical space and maximizing the storage capacity of the shelving system. It provides a practical and space-saving solution for storing items that are better suited for hanging rather than being placed on shelves.