High quality 33 expansion borosilicate cane produced with the greatest care for the best lampworkers out there. This cane is consistent in it's diameter and uniform in it's twist. All cane is produced using the finest quality glasses. Save yourself time and trouble and use this high quality material to begin making Zanfirico style masterpieces. Quantities are limited and it is possible that a cane style available today, once sold out, may never be available again. Our inventory is constantly changing.