Storage cylinders for general purpose lab use are available at VWR. Choose from polymethylpentene plastic or borosilicate glass models. Permanently moulded gradations on plastic cylinders do not fade even with frequent autoclaving. Select a glass cylinder with an enlarged funnel for easier filling and a hexagonal plastic base for stability. Some options include a reinforced top bead and pour spout. Purchase these models individually or in economical cases. A rotating cylinder for transdermal patch is also offered.