This pen ink mixing kit comes with a dropper, and lets you enjoy creating your own ink combinations by choosing your favourite colours from the base inks and mixing them together. The four base colours included are: transparent, yellow, pink and blue. These water based dyes produce the most beautiful colours, even when mixed. Made in Japan. Pen Ink Mixing Kit With Dropper/Mini 8 mL (4pcs) Clear,Yellow,Pink,Blue