Specifications include, but are not limited to: Research Products International Corp Micro Centrifuge Tubes, 1.5 mL Capacity, graduated 100ul, natural 500 per case; Heathrow Scientific Cardboard Cryogenic Tube Storage Box, 25 x 25 place with grid for 1.5/2 mL tubes. 1 Required Item Cooling Chamber 64-Place Step 50-189-9060 Electron Microscopy Sciences Cooling Chamber 64-Place Step QTY-2 50-189-9060Electron Microscopy Sciences Cooling Chamber 64-Place StepQTY-2; 2 Required Item Double Cooling Chamber for 0.2 ml tubes 50-334-28 Electron Microscopy Double Cooling Chamber for 0.2 ml tubes QTY-2 50-334-28Electron Microscopy Double Cooling Chamber for 0.2 ml tubesQTY-2; 3 Required Item Micro Centrifuge Tubes 50-212-309 Research Products International Corp Micro Centrifuge Tubes, 1.5 mL Capacity, graduated 100ul, natural 500 per case QTY-1 50-212-309Research Products International Corp Micro Centrifuge Tubes, 1.5 mL Capacity, graduated 100ul, natural 500 per caseQTY-1