Cryogenic color dots for the identification of tube and vial caps. These tube and vial labels are ideal for both short and long-term storage and color coding in deep-freeze and harsh laboratory environments. Waterproof and durable, they are available in roll format to be printed with most brands of thermal transfer printers in addition to letter and A4 sheet formats for printing with laser and inkjet printers. Dot labels are also provided in 4” x 6” (Hagaki) format making them easy to write on with LabTAG brand permanent cryo markers, such as MP-1 and F-1.