WIDE APPLICATIONS: Perfect for using these calligraphy fountain pens to draw, doodling, coloring, sketching, key markings and so on; They are very suitable for homes, offices and schools. LARGE CAPACITY AND SMOOTH WRITING: Compared with traditional writing pens, the ink capacity of the writing fountain pen is about 2.2 grams, which will provide you with a long service life and writing time; What's more, the quality refill is fast drying and smooth to write, which will not stain the paper when you write and give you a nice writing experience TOP QUALITY MATERIALS: The fountain pen shell is made of PP resin, which is light and reliable, and the nib is made of stainless steel, wear resistant and not easy to break, sturdy and not easy to loosen, which is reliable to use and suitable for most of the crowd. NIB DETAIL DESIGN: the pen adopts the F shaped fountain pen nib with a size of 0.02 inches; It is easy to handle without sliding, can provide you with smooth writing PACKAGE CONTENTS: You will get 12 pieces black disposable fountain pens, abundant quantity to meet your daily use and replacement.