DIVERSIFIED BIOTECHDTCR-6000-B Direct Thermal Cryo-Tags and Cryo-Spot Combo Label, 3/8" Spot, 0.50" Width, 1.50" Length, Blue (Pack of 1000)

This product has been great for creating legible tube labels on 1.5-2mL microcentrifuge tubes in the lab. I strongly recommend them for your Dymo Label maker. The only complaint I have about them is that the color of the label (not the writing on the label) comes off if it comes in contact with a solvent (such as ethanol). As a side note, I purchased these same labels from Diversified Biotech through Amazon in the color white and they were completely defective! The labels would come off in the machine as the role became increasingly unwound causing my label maker to jam and a lot of perfectly good labels to be wasted.