Conical 2.0mL, Screw Cap Microcentrifuge Tube

BioPlas Micro Tube, Cryogenic, 2mL, Natural, Polypropylene Copolymer, Conical, Leakproof, Inert, Non-toxic, Non-pyrogenic, Sterile, with O-ring External Thread Screw Cap, For Safe Storage of Cells or Biological Fluids in Vapor Phase of Liquid Nitrogen or any Mechanical Freezer, Ideal for Sperm, Serum or Blood Specimens, Micro-biological Cultures, Cell Cultures and Hazardous or Valuable Samples, Uniform Wall Construction will Stand up to any Current Microcentrifuge, Unbreakable, Tubes Withstand Over 30000 g, Sterilized by E-Beam - BPLS