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 includes: 4pcsGel Ink Pen "