Use the registry recently in my plastic-Leitz folder (the very good and stable btw) - the great thing about this tab is the large width, so that even when specific genre plastic document holders yet the number or the register can be recognized. The plastic is really very thick and looks very stable. In addition, it is still a good grip and is easy to hold when turning and easy to grip. The price is not cheap, but you get a really good product. Highly recommended.
Oh, I do not use the Imprinted function, but've viewed the site which is very well done (for all types of folders Leitz), but you probably need the printable templates of the back labels. But since I do not use it, it does not bother me.