VEVOR Trailer Dolly, 1200lbs Tongue Weight Capacity, Carbon Steel Trailer Mover with 2 inch Ball, 15.2 inch Pneumatic Tires, Portable Tow Dolly for Moving RV Trailer2 in Hitch Ball15.2 in Pneumatic TiresUniversal WheelSturdy ConstructionExcellent DetailsWidely UsedItem Model Number: QYC1200-B,Material: Carbon Steel,Wheel Diameter: 15.2 in / 386.1 mm,Max. Tongue Weight Capacity: 1200 lbs / 544 kg,Product Weight (including all accessories): 44.09 lbs / 20 kg,Ball Diameter: 2 in / 50.8 mm