This is a mini bottle of Pilot's fountain pen ink "Iroshizuku" (colors of the Japanese landscape). This is a series of colorful inks created from the beautiful scenery of Japan. It is a water-based dye ink. The capacity is 15ml. "Kosumosu (cosmos)" is a pale, bright pink color that tends to show variations in shade. "Yu-yake (sunset)" is an orange color that evokes the image of the evening sky. Compatible products: All piston-filling fountain pens and converter-type fountain pens Japan has many beautiful natural landscapes, and they have very beautiful names. The iroshizuku series is a colorful ink created from those beautiful scenes. Bringing you even more joy and pleasure in writing. Available in 15ml bottles, so please feel free to try them.