Aluminum pipe 1 5/8 inch outside dimension. 1/8 inch wall thickness . I have 22 pieces (20 foot long each ) 1 (11 foot long) piece . Can sell separately or as a whole . Savings of no sales taxes, no shipping charges or special orders. Priced at $10.00per foot . Lots of uses. I used some of it for railing on a deck I built . I have added a picture of deck I built. Willing to work with lower price currently priced lower than retail .