SCMCTB005 0.5ML microcentrifuge tube 500 pcs/bag, 10 bags/carton 3.23 37.5 X 33.5 X24 Centrifuge Tube 1. Made from virgin polypropylene 2. Autoclavable at 121 and freezable to -80C 3. Easy open and closing 4. Different color can be choose 5. Bulk Package, 500pcs/bag, 10bags/ctn 0.5ml Microcentrifuge Tube(nature)