Move two 55 gallon drums at a time double your efficiency. the double drum dolly enables a worker to move two drums at a time increasing productivity. Drums are contained safely and securely within a 2-in deep ring. Four 3in steel cross strips support the load; a 2-in wide lengthwise strip with a steel angle stiffener increases rigidity and reduces flex under load. Drum is only 5-in off the floor. Six double ball race swivel casters provide 1800 lbs. Capacity and ensure total maneuverability. Orange enamel finish. Shipped assembled. note : drum is 5-1/4in off the floor.