As some write here the beginning tingling feelings diminishes quickly. There still remains a pleasant massage for the scalp. A big advantage is that no partner is needed for this type of relaxation massage, and it looks also not stupid, if you do it in the office.
But it is also suitable for partners, and just for Grobmotoriker like me that's a safe way to treat the friend.
It is also a great gift idea, hardly anyone has something, and we like each fairly certain and no more expensive than a large meal at McDonalds.
PS: It has 18 bars, I have repeatedly recounted.