The OTC twin wheel dolly has a hydraulic jack which gives almost 5 inch of carry and tilts the wheel assembly 4 Degrees to stop harm to wheel seal. The swivel caster makes for simple maneuverability and is derived with a 6 feet chain to carry a lot in place.
Hydraulic jack supplies almost 5 inch of carry
Tilts wheel assembly 4 degrees to stop harm to wheel seal
Swivel casters for simple maneuverability
6 feet chain holds load in place