Poor quality control.
The brush I received was not perfectly round and the bristles are a bit too soft. They place a label in the wood and it's a bear to get it off and the sticky residue it leaves.  Aside from not being perfectly rounded it's also sanded flat in spots near the edges.  Quality control is a miss on this one. Three stars because it is functional and useable although a bit too soft bristles for my liking as mentioned.
Rating: 3 stars