Review (2/5): Too soft to be useful
Not "medium firmness" at all. The bristles are too soft to get through most people's hair, unless you want to just smooth over flyaways on the surface. My hair is EXTREMELY fine and thin, yet this brush is still nearly useless. My other boar bristle brushes (e.g., Mason Pearson) have much firmer bristles, to actually brush the hair. I would not buy this again, but I didn't return because it wasn't worth the trouble. Might work for a baby's short, fine hair, or a man's short beard.