Technical pens how long do they last? Answered
I have some old technical pens I think more the 20 years old. The kind that you refill and take apart when you need to clean them.
I was wondering if any one knows if its time to throw them in the trash?
They are Staedtler Mars Matic ink pens. They came in 3 classic standard sizes in a plastic case.
I did know how to clean them nicely but haven't used them in a while. So when I did go to use them it made a mess. So I cleaned them again and it didn't improve anything. I was wondering if the plastic distorts after awhile?
So what do you think?
Thank you for your answer. :)