Cryogenic labels for the identification of small diameter vials & tubes, plates, cardboard freezer boxes, polypropylene cryo boxes and plastic bags. Designed for long-term cryo-preservation under cryogenic laboratory conditions including liquid helium (-269°C / -452. 2°F), liquid and vapor phase liquid nitrogen (-196°C / -320. 8°F), -80°C (-112°F) freezers and dry ice transportation.