Greenlee's 668 is a heavy-duty storage and transport solution designed for maximum efficiency on the jobsite. It features seven individual bins for sorting materials by size and type, along with foldable material trees that provide flexibility and convenience. Built with a high-strength steel frame, it supports up to 1,000 lbs of material, while the included 6" heavy-duty casters ensure smooth mobility. For added efficiency, multiple units can be securely stacked for storage or transport, with a stacking block that locks into the tree stock to prevent tipping or tumbling.