Technical Pens Encyclopedia 3rd episode is about the Rotring 2000series, Isograph, rapidograph new

This is the third episode of the technical pen encyclopedia series and will be dedicated thoroughly to new versions of Rotring technical pens such as 2000series, isograph, rapidomat, rapidomat dry, secomat, altro and many more and their application in art or drawing. so if you're planning to buy a set of these technical pens or you already have one and want to know more about it, this series of videos is definitely a must watch for you 😉