Hello, I have 20 cryostat chucks that go to the older Tissue Tek Cryostat. If anyone needs additional chucks, please let me know. Thank you, Tracie Palmer, HT (ASCP) Laboratory Supervisor Wallis Dermatology Associates 4001 Technology Center Suite 304 Longview, Texas 75605 Lab 903-918-8004 Fax 903-663-2454 Cell 903-235-9269