Wesco Aluminum Drum Trucks with spring loaded chime hook automatically engages drum. Two chime hooks available:  SCH: standard hook for closed head steel, fiber and poly drums (SC). (Not for use on drums with locking ring or 85-gallon size).  LCH: special order hook for steel, fiber and poly drums with locking rings. Can be used on 85 gallon drums. Two wheel choices: 10" Moldon Rubber on Aluminum Hub - #055684 or 12" Pneumatic Steel Hub - 108484. Disc wheel brake activated by hand lever:  Use with steel, poly and fiber drums.  30 and 55 gallon drums. Overall Dimensions: 25.875" wide x 60 high x 18.5" deep.