|Notice the straight yellow line. Notice the brush.|
I showed it to my friend who is into "man tools" and he said in matter-a-fact voice, "It is ergonomically bent."
WHAT????? Well, to tell you the truth my finger rests there and it works as well as a straight brush but really, I don't think so.
Anyway, I noticed my other brushes weren't made this way and wondered about returning them. But, it is only one brush that came in a nice set, and I like the rest of my brushes (because they are synthetic). I figured I will just live with the "ergonomic curve" until it starts to bother me which will probably be in a few weeks.