- The lid allows for easily visual inspection, nice for tube reference and identification centrifuge tube holder - Perfect for freezing 50ml centrifuge tube. Centrifuge tube box-- perfect for freezing 50ml centrifuge tube. Suitable for scientific research, laboratories, , personal use, etc test tube rack. Upright Freezer 2-Drawer Rack for 50 mL Tubes ULTECHNOVO Plastic Rectangular 81 Positions Laboratory Centrifuge Tube Case Box, with Number, for Laboratories Compartments for Efficient Cryotube Organization Low Temperature Storage for Test Tubes -Material:Plastic tube rack -Color:As Shown geocache containers -Note: each case fits for placing 16 x 50ml centrifuge tubes centrifuge tube freezer storage. - Crafted from plastic material, this test tube stand is sturdy and , support time use centrifuge tube case. Test tube-- this test tube rack is laboratory to freeze test tube, a necessary equipment for the laboratory. Package List 3 x centrifuge tube box Characteristics -Size:14., 50X14., 50X12., 60cm/5., 70X5., 70X4 plastic organizer box. Goods Descriptionvial Made of plastic material, well designed and functional. Centrifuge Tube Box PP - MEDILAB centrifuge tube holder It saves space and gives you an easier way to store centrifuge tubes Laboratory Sample Storage Box ULTECHNOVO 50Ml Centrifuge Tube Freezer Storage Box With Transparent Lid - Laboratory Test Tube Rack Holder For Scientific Research And Lab Use Space-Saving Plastic Container 50ml Tube Freezer Rack