Bel-Art Scienceware 133840003 White Tech Pen

Soft tip writes on glass, metal, ceramics, plastics, paper etc
Oil-based marking paint resists washing, weathering, mild acids and alkalis, and it operates within the temperature range of -46 degree to 65 degree C (-50 degree to 150 degree F)
Withstands autoclaving at 121 degree C (250 degree F)
Mark is approximately 1mm (0.040") wide Felt tip marking pen perfect for labeling all types of glassware and plastics. Permanent, quick drying ink is waterproof and smudge proof, and when dry will withstand autoclaving. 5 1/4" (13.3cm) long with handy pocket clip. Pack of 3. More »