This moonman pen is a compact pocket pen，you can fill it with eyedropper, 2.6mm disposable cartridges or converter. Ink Not included for safety, you can add the matching cartridges here;https://www.amazon.com/dp/B00W01VCJA

The C1 is an updated version of the Moonman M2, It using better quality acrylic resin in this version, and the grip section was made of colorful celluloid, the color may vary each time as they come in random.

It has a sleek, modern, minimalist aesthetic. It equipped with O Ring, eyedropper it with confidence.

It is a cool, classic, uniquely designed, and attractive mini pocket pen. The clear acrylic body filled with a complementary ink is gorgeous.

This Moonman C1 fountain pen is more than just a writing instrument. It's an open, unapologetic proclamation of your refined executive taste. Use it to sign documents, craft letters, take notes or handwriting. And know that you have rare quality in your hands.