Steel; consists of angle bracket 3.125 in. Lg; 1.125 in. W 3; arm 11.750 in. Lg 1; rod 11.6625 in. Lg; 0.500 in. Diameter 1; cap nut 3; spring 10.500 in. Lg 2; 13.000 in. Lg extended; 2.000 in. Center to concrete of bolt holes; 2 holes 0.282 in. Dia; 0.312 in. Thk