Thermo Scientific Nalgene® Cryoware Labels and Markers materials are designed specifically for use at ultra-low temperatures:
Cloth labels EF6823A adhere to plastic and cardboard cryogenic storage boxes. Labels will not peel or shrink, even upon removal from mechanical or liquid nitrogen freezers. 25 x50 mm labels are plain. 20 labels per sheet; 10 sheets of labels per package.
Marker set EF6823C can be used to permanently mark cloth, cardboard and plastic. Smear-proof ink will not fade at low temperatures. Each package contains 4 pens: red, green, blue, and black.
• Designed for lasting record-keeping at extreme temperatures