Zebra Z-Select 2000D 58mm. Product colour: White, Material: Paper, Print technology: Direct thermal. Core diameter: 2.5 cmSelecting the best thermal materials for your documents and receipts is very important. While they look similar, the chemical make-up of each material affects its lifespan. A direct thermal topcoated, 60 micron white receipt paper. Good enviromental resistance to factors such as heat, humidity, light, plasticisers and water. Not recommended for applications involving prolonged exposure to moisture and solvents or long term exposure to heat or UV light sources. Suitable for applications which require upto 12 years archive life.