In general, we don’t recommend plastic brushes, because it’s the sign of a lower quality and as the plastic bristles of our brushes get damaged, it becomes rougher for the scalp. This being said, TangleTeezers are made of soft flexible plastic all in one piece, which avoids losing the small balls that protect the bristle end so this is not so much of an issue with these. Then, they advertise that their brushes don’t cause as much breakage with the dual length and flexible bristles, which seems to work to a certain extend. We still believe that detangling tough knots by hand and applying all the breakage prevention techniques is the best way to avoid breakage so we wouldn’t solely rely on their ‘soft bristles’ to avoid breakage. When it comes to bristle density, most of their brushes have quite high density of bristles which may cause more static in your hair if you are already prone to that issue. They also advertise brushes especially for wet brushing. We don’t recommend wet brushing at all unless in the situation of curly hair, a dilemma which I explain in detail in ‘brushing curls 101’ lesson here. One big plus side for them, as it’s plastic it’s also easier to keep it clean. So overall these are not bad brushes and they qualify in the few ‘good quality’ if their design align with what your hair goals and unique hair profile needs