This is a set of a glass pen and ink from HERBIN, a long-established ink maker founded in Paris, France in 1670. I used the included ink to test it once. I haven't used it since, so I'm putting it up for sale. Color: Turquoise Mint Green Glass Pen Size: Approximately 20cm (body length) Ink Capacity: 10ml in a glass bottle [Perfect for Gifts: Glass Pen and Classic Ink Set] This set combines a glass pen from the "Tsumugi" series with a mini size of HERBIN's classic "Traditional Ink." Each glass pen is a one-of-a-kind, handcrafted item. The fine grooves on the nib allow you to write several lines without running out of ink. The pale-colored body and the delicate pen tip that draws a smooth spiral are refreshing just to look at. Enjoy the changes in ink shade by adjusting the amount of ink and the pressure on the pen tip.