Material: PP. Autoclavable: yes. Sterile Suitable for storage of cell cultures, serums, blood components, bacteriological cultures and other liquids at low temperatures in refrigerators or nitrogen vessels. Suitable for storage of samples in he gas phase of liquid nitrogen. Lid and vial made of identical material, even expansion of the material, no danger of explosion. Non-slip lid with vertical strips 1¼ turn for quick cap opening and closing White labelling space High transparency, sample readily visible Round inside bottom, contents empty completely Temperature-stable up to -196 °C Gamma-sterilised RNase/DNase/DNA-free and pyrogen-free Cryogenic vials free-standing outer thread Self-standing vials with thread on the bottom, thus possible to open with one hand in stands with engaging device. In vitro diagnostic medical device class A