Free flowing, easily rolled, and dries quickly on paper Not adversely affected by extreme temperature changes Will remain soft and usable on a slab for days Choose from a 2 oz or 4 oz tube Specially formulated for fingerprint work only, this densely-black ink is free flowing, easily rolled and dries quickly on paper but will remain soft and usable on a slab for days. This ink is not adversely affected by extreme temperature changes. It is used by large and small identification departments throughout the world. Choose from a 2 oz or 4 oz tube.