Review (5/5): for something like, maybe
Been using this, exact model, for something like, maybe, OVER 30 years ...
The rubber "bristle bed" does deteriorate, over a period of 2 to 3 years but there is no better design and it also stimulates my scalp in a very good way. I am so glad that these are still available. ... $7 per brush seems a bit steep, to me, but there is nothing else like them ... Supply and demand.