MARKER LAB BLACK 10/BOXMARKER LAB BLACK 10 BOX Resistant to most laboratory chemicals and solvents, the Diamond permanent laboratory marker is ideal fornumerous marking applications Extra fine 0. 75 mm tip is perfect for clear labeling on smallsurfaces, including histology cassettes, microscope slides, and cryogenic vials The quick dryingblack ink marker is smear , water , and fade resistant plus odorless to produce clean, lasting writing Works well on smooth and