Product Description This is the hocoro Dip Pen that makes it easier and more convenient to use bottled ink for fountain pens. The “hocoro Dip Pen M” is a product that includes one pen barrel and one Medium nib. Play with more ink colors, the casual and durable way. You can enjoy a wide variety of fountain pen ink colors without the conventional messy fuss. All you need to do is simply rinse the nib with water and wipe dry.