6500-pound Strong Load-bearing Capacity: Constructed with a fully welded and thickened iron tube structure, it has an extremely high overall strength and stability. The four-piece set has a rated load-bearing capacity of up to 6500 pounds, capable of easily handling the transportation needs of heavy vehicles. The thickened iron tube material has excellent resistance to deformation and wear, and is unlikely to be damaged over time, ensuring a longer service life.