UltraCruz® Fine Tip Lab Markers can be used for a wide variety of laboratory marking, labeling, or addressing tasks. Markers are suitable for industrial, biomedical, research, and educational laboratories for marking small lab samples, slides, beakers, sample bags, freezer boxes, and more. Lab Markers can be used to write on glass, film, plastic, metal, porcelain, wood, rubber, and paper. Markers contain permanent ink that is water resistant. The durable fine tip and generous ink supply provide a long product life. Markers are available in green or black ink that dries quickly for immediate handling of labware. An airtight cap prevents the marker from drying out. UltraCruz® Lab Markers are comparable to Sharpie® Marker Pens.