tubing is cold down,seamless,and is stocked in lengths of 18 to 22 feet but may be ordered in shorter lenghs with no additional cutting charge. tubing size(O.D.*I.D.): 1/8"*0.020;1/8"*0.040;1/4"*0.083;3/8"*1/8";9/16"*3/16" ;9/16"*1/4";1"*0437"