Drum dolly 86412-56 and Brute® dolly 86412-58 and features heavy-duty 3" polyeurethane swivel casters that easily maneuver heavy loads in tight spaces. Drum dolly is made specifically for 55-gal drums. Tandem dolly 86412-60 has 8" wheels and 4" swivel casters and a center hinge for uneven loads. Tandem dolly can be folded upright for spacve-saving storage.