Cryo storage dewar HC34 from Taylor-Wharton is designed specifically to store biological samples including crystals at cryogenic temperatures for long-term (several days). The storage dewar has a 3.6" neck diameter and accommodates six (6) separate 11" cryo canisters. Each canister can accommodate about twenty (20) cryo canes and each cryo cane can accommodate five (5) cryo vials each. Over 500 samples can be maintained at cryogenic temperatures for over one hundred (100) days. This cryo dewar is housed in KLB412 and is available to all the members of Structural Biology Program.