Do you write a lot by hand? In that case, consider the ballpoint pen, which you can use for every day writing. This STABILO Marathon 0.38mm Blue - Pack of 6 pcs ballpoint pen uses liquid ink that won't fade. It writes with a line thickness is 0,38 mm. The pen can easily be used even after the ink runs out. All you need to do is change the used up ink with a filled one. There's no need to worry that the ink will dry out. The Push function takes care that your handy tool won't dry.
Specifications can be changed without notice. Images are for illustrative purposes only.