STAEDTLERMars Matic 700 M013 Technical Pen - 0.13 mm, Blue

Don’t bother with these at .13. Down to .18 are fine, but smaller than that they are utterly unreliable and you’d be better off with a rotring.I’ve got a fair amount of experience with tech pens, and despite using the correct ink I have had two of these that simply don’t run at all, and a third that worked for a few hours then stopped completely. I cleaned it with the proper solution and an ultrasonic cleaner and tried again, to no avail, so I soaked it for 24 hours and redid the cleaning cycle... and stil nothing.It’s a shame because I prefer the feel and material used to the rotring isograph, and the .18 upwards have been working fine.But don’t buy the .13’s, unless you want to be utterly frustrated!

This thing shouldn't be on the market - should be redesigned and improved. Scratches the paper. Ink flow is awful.Rotring is so much better. I was looking for something new but I will stick with rotring. This

Almost redundant, the Staedtler Mars Matic is a great choice of pen for pen and ink illustrations or technical drawings, both of which are moving to the digital medium. Easy to clean and maintain, as long as you ensure that the nib is not put under too much pressure, it will provide fine lines for many decades.

A great product for my son

Worked fine for a few weeks then stopped working. It happened before and I returned it and received new one.Tried to return this one but out of time.Not impressed and will go elsewhere