Do you write a lot by hand? In that case, consider buying the ballpoint pen, which you can use for any type of writing. The line thickness on paper is around 0,27 mm. The body of the pen can be used even after the ink runs out. All you need to do is change the ink with a new one. There's no need to worry about the ink drying out. Its Push mechanism helps that your handy tool won't stop working.
Specifications can be changed without notice. Images are for illustrative purposes only.