Tape for the identification of previously frozen plastic containers, freshly removed from ultra-low temperature storage, even in the presence of frost and moisture. Ideal for long-term cryo-preservation of cryo vials, tubes, and freezer/cryo boxes in liquid or vapor phase liquid nitrogen (-196°C/-321°F), laboratory freezers (-80°C/-112°F), or transportation on dry ice. Provided in a continuous roll format, the cryo tape can be inscribed using permanent ink cryo markers. Available in an assortment of colors for easy identification and color coding.