Dr. Ph. Martin's 400250-36H Hydrus Fine Art Watercolor, 1.0 oz, Ultramarine Red Violet (36H) Ultramarine red violet (36h) in a 1.0 Oz glass bottle with dropper Fine art quality watercolor with the same brilliance and permanence as traditional tubes Brilliant, lightfast, transparent liquid watercolor for use on paper or canvas 36 Unique colors available across three different sets Made in the USA