4 1/2″ & 2 3/8″ Diameter Steel Pipe. Includes: (7) Total Pipes. (4) 4.5″ OD. 3/8″-1/2″ Thickness. Lengths: 127″. 137″. 145″. & 147″. (3) 2 3/8″ OD. 1/4″ Thickness. Lengths: 27′. 30′. & 39′