Produce precise lines of 0.3-mm width. Perfect marking pens for lab samples, microscope slides, photographic slides, glass and plastic beakers, and plastic sample bags. Writes on all surfaces including glass, film, wood, plastic, metal, rubber, and porcelain. Unique stainless-steel long leg allows precise writing in a limited space. Instant writing, long storage time, and dry-out prevention are assured by an airtight ring seal cap. Permanent ink dries in a split second and is waterproof and fade proof. Colors are opaque black, vivid red, blue, and green. Thinnest permanent line ever developed is sharp, precise, and clear.
