Description Low-Temperature Labels for Thermal-Transfer Printers Size: 0.94″ x 0.5″ 0.437″ / 23.9mm x 12.7mm 11.1mm Label across: 1 set of rectangle circle Color: White, Blue, Green Apple, Lavender, Orange, Pink, Red, Yellow Label Sets/Roll: 2,000 or 4,000 Core: 1″ or 3″ Perforation: Yes Mark: Notch Adhesive: Max strength extra-permanent Temperature range:  From -196°C to 110°C Our thermal-transfer cryo labels resist extreme low-temperatures, including temperatures as low as liquid helium (-196°C/-321°F), making them perfect for labeling air and fuel cooling systems as well as cryoelectronics. Coated with a permanent adhesive, our cryogenic barcode labels adhere to wet and damp surfaces and withstand spraying and rubbing with alcohols and sanitizing wipes. These low-temperature labels can be printed on with all common thermal-transfer printers to incorporate serialized information and high-quality barcodes. Benefits: Resistant to extreme cryogenic conditions, including liquid helium (-196°C/-321°F) Strong permanent adhesion, even to wet surfaces, with excellent grip on curved surfaces These labels are resistant to spraying and swabbing with alcohols RECOMMENDED RIBBONS Smudge and Alcohol Proof Resin Ribbons: RR-CLASS