3steel, black oxide, 5-3/16 in. O/a lg, 2 in. @dia of rod, 2-1/2 in. Diameter wheel insert, 3/4 in. Pin dia, 1-1/8 in. W of wheel w 5/8 in. Chamfer 45 degrees @ea side of wheel, other end 1-3/4 in. Bore dia, bore depth 2 in. Bore has 3/16 in. Diameter hole at bottom