About Product:Brand: huijun\n2.2m straight rod) maximum load :500LB, inner diameter: 28MM color A3 steel production, two end with seiko weighted and thickened special peak lock\nThe diameter of the main bar conical rod is 30MM, and the two ends are equipped with steel sleeves to ensure load-bearing safety. Nylon sleeves are used to protect the internal structure. Seiken rebar structure can be used to rotate the middle rod at will in the lifting process