Description_x000D_ General description_x000D_ Tough - Chemically inert, polyolefin labels resist most organic solvents and caustic agents. They adhere to most plastics†, glass, and metals without cracking, peeling, or degrading_x000D_ Temperature-Resistant - From -196°C to 100°C, Tough-Spots® withstand boiling water baths, moderate oven temperatures (150°C), autoclaving and extreme freezer temperatures (liquid and vapor phase nitrogen)_x000D_ Specially Designed - Label sheets are specially top-coated to readily accept laser printing. Heat-resistant, stay-flat sheets will not jam in laser printers_x000D_ Ideally Sized - Fits a variety of microcentrifuge tube tops, cryovial caps and lids, as well as many other laboratory container caps, lids and covers_x000D_ Color Coding - 3/8 in. (9.5 mm) and 1/2 in. (13 mm) diameter Laser Tough-Spots® are available in White, Blue, Green, Orange, Red and Yellow_x000D_ Legal Information_x000D_ Tough-Spots is a registered trademark of Diversified Biotech