Trolleys for heavy industry can support extremely heavy loads and yet be easily transported. Rolls on large 5" casters. Pegboard panels on both sides of the trolley provide 20 sq. ft. of panel space for tool storage. Tool Storage Systems require only 21.52 sq. ft. of floor space and provide 172.22 sq. ft. of storage space. There is a caster on the lower edge of the panels which makes them easy to move. A maximum of 10 panels can be attached to the tool storage system. Both use Sovella pegboard hooks (sold separately). FOB Shipping Point.