Serious watercolor artists, this Dr. Ph. Martin's set is absolute professional-grade quality! The Hydrus Fine Art Watercolors deliver incredible brilliance and transparency that rival traditional tube watercolors. Each of the 12 colors in Set 2 is made from the finest artist pigments, ensuring excellent lightfastness and permanency so your artwork stays vibrant for years. The 0.5oz plastic bottles with droppers make measuring and mixing so convenient - you get perfect control over color intensity without wasting paint. The included custom mixing palette is genius - it doubles as a bottle holder with space for a water cup and six mixing wells, keeping everything organized on your workspace. The colors in this set are beautifully curated: Hansa Deep Yellow, Yellow Ochre, Permanent Red, Cobalt Blue, Indian Red, Viridian Green, Burnt Sienna, Alizarin Crimson, Sepia, Payne's Gray, Sap Green, and Burnt Umber - giving you a fantastic range for mixing virtually any color you need. The transparency and luminosity are exceptional, allowing for beautiful layering and glazing techniques. These work wonderfully for technical illustration, calligraphy, fountain pen work, and even airbrushing. Made in the USA, the quality is consistently excellent batch after batch. Whether you're a professional illustrator or a dedicated hobbyist, these watercolors deliver the performance and reliability you need. The vibrancy when the paint hits the paper is immediately noticeable - rich, saturated colors that maintain their clarity through multiple layers. Definitely worth the investment for anyone serious about watercolor painting!