To compete with the übersilberspitzen offerings from Shavemac, Heinrich L Thäter, etc., our little no-name-and-older-than-the-Titanic German brushmakers relented upon small-diameter insistence to produce stunning larger class examples in the ultra-soft-longest-costliest-strands realm, which includes this ‘85003-nussbaumholz’ model which once installed comes in when rubber meets road at about 24mm diameter with a stellar domed head of ~58mm loft.
This is, incidentally, the precisely-identical knot of hair as this bigger model, same weight same grade same strand length spec. When they put this knot in to the handle (all by hand, btw), they elected to put it just a bit deeper in on this handle versus that plexi one, and so it becomes -1mm and -2mm of diameter and loft as an installed piece.
These knots are brilliantly executed, there’s no other way to put it; they ooze skill. There is _no_ annoying glue plug, you get true flexibility all the way through the loft. The knot canopies are flawlessly figured, and all labor of this knot is done by expert hand; gathering, weighing, filling, tying, applying glue to the knot, applying to the handle bore, and setting in the knot to the handle all 100% handmade in Germany by trained master brushmakers.
The lathed walnut wood handle used here is also made in Germany. Classy. Like all wooden handles, you need to do your part to keep water out of it, through a combination of avoidance and supplement (I wipe my wood handled brushes with a Ballistol-soaked microfiber cloth).