Dr. Ph. Martin's Iridescent Calligraphy Color Bottles, 1.0 oz, Set of 12 (Set 1) Set of 12, 1.0 oz glass bottles with droppers and mixing palette Stunning colors with a pearl shimmer and shine and unmatched color intensity Lightfast, waterproof, archival grade color made from the finest ground pigments 24 unique colors available across two different sets Made in the USA