Review (5/5): Good quality!
I asked my hairstylist about these types of things and she said the one problem she had with them is that the nubs were too stiff and too sharp and ended up being too rough on the scalp. I was careful picking out a head massager, this one looked good. It absolutely delivered, the nubs are nice and dull and flexible, but still give a good head massage and the whole thing is one piece of silicone so it will be durable as well!