These pre-cut peel-off round labels for 1.5ml/2.0ml microcentrifuge tube tops are chemically inert and flexible white and colored polyolefin labels that adhere to most plastics as well as glass and metals. These labels withstand temperatures from -196°C to +100°C (vapor and liquid phase nitrogen storage, up to moderate oven temperatures) and can endure sustained humidity and soaking, submersion in boiling water baths, autoclaving, organic solvents, caustic agents and other challenges without peeling, degrading or becoming brittle.

Tough-Tags label sheets are specially designed to permanently accept laser printing and accepts any marking instrument. These labels are perfectly sized to fit microcentrifuge tubes and other containers in the laboratory.