The smallest brush that Simpsons make, irresistibly stamped with Alexander Simpson's signature and filled with Best Badger Hair.
"Wee", in this case means small. When we say small, we mean small. Don't let it's tiny stature fool you, this is a tiny brush in a most helpful way. Indeed, men shave with it every day and they're loving it. That's why reviewers are calling it "the mouse that roars"!
The size of the brush means that you can accurately place the lather where you want it -- without wearing it where you don't!
The hand tied knot is filled with Simpson Best badger hair. This gives it backbone to whip up a great lather, but the soft "face feel" from the tips that you expect from badger.