Features: Comfortable Writing: Press pens provide comfortable and smooth writing.The nib provides clean lines and reduces jumps when writing, allowing these pens to write smoothly on a variety of papers. Quality: Superior ink make the pens writing smoothly and using durable Great pens for coloring, kid doodling, scrapbooking, sketching, drawing, doodling, writing and getting creative in a fun and skilled way. Large Capacity Refill: The refill of our writing pen is made of a good quality nib, which makes writing smoothly on paper without paper resistance. You can use it to sketch, draw, color,write, etc. If you often need to use a black pen, our super-capacity black ink pen is perfect for you. The ink dries quickly on paper to prevent gelatinization and provide super smooth handwriting. Super Quick-drying Rollerball Pens: With precision tip and smooth writing ink, the rollerball ink dries quickly after a few seconds. After-sales Service:If you have any problem, please contact us immediately, we will help you solve it as soon as possible. Specification: Line Width: 0.5mm ShellMaterial:ABS 4pcsGel Ink Pen