Brightly colored, water-resistant and non-clogging, these inks are made with pigments, not dyes, which gives them excellent tinting strength and good lightfastness properties (29 of the 30 colors are permanent—Flame Orange is moderately permanent). Use FW inks full-strength with brushes, airbrushes and technical pens, or dilute them for subtle tones. All the colors are intermixable and are water-resistant once dry. Opaque and transparent colors come in 1 oz. glass jars with glass dropper lids.