Heavy-duty convertible hand truck that converts from a 2-wheel hand truck to a 4-wheel platform cart. Flow back handle for 1 or 2 hand operation. 4″ x 1-1/4″ blended poly swivel casters. Height 46″ vertical, adjusts to 61″. Width 17″. Load rating 500 lbs. vertical and horizontal. Tire size 10 x 4. Type tire 4-ply pneumatic.