Zenith Chubby Scrubby Boar B27 - 28mm x 55mm This brush is fully broken in. The knot is very full and dense. Of my four boar hair brushes this hair is the finest or thinnest. Damp and drying knot measured at handle lip 30mm. The brush does not have a prominent bloom and for its size the footprint stays very tight. It feels and maneuvers like a 26mm knot. Brush splay is very comfortable and easily controlled. The measured loft from glue bump is 46mm. The badger soft tips paint with buttery smooth comfort. The acrylic handle is comfortable, little effort needed to control any scrubbing. Zero scritch with this brush and the scrub is a very pleasant medium soft. The backbone is a medium hard to me, very nice. The hair and handle to me are above average quality. This is a high performance boar hair brush.