8" diameter, .25" wall extruded 6061 Aluminum tubing<br /> <br /> Piece is 5 7/8 " long.<br /> <br /> This is a monster of a piece -- it is in good shape (standard metal yard scratches) but there are three chuck witness marks on the inside that are worth mentioning (only affects the inside of the first 1.5" of length). I have included pictures.<br /> <br /> $30 OBO<br /> <br /> On Stanford campus.