Pathflow PiSmart Laser Cassettes are a two piece design with a rear hinge & front tab closure.  Available in Slotted, Biopsy & Microbiopsy.  Threaded cassettes come in stacks of 40 cassettes, and 50 stacks per case of 2,000.  These threaded cassettes can be easily and quickly loaded in the PiSmart Laser Printers. These cassettes are a validated consumable for the PiSmart Laser Cassette Printer.