I suffered for nearly a year of strong tension in the cervical enriches. The variety of symptoms went from pain of headache and dizziness. Even after many attempts at treatment by my orthopedic surgeon, it was only a short time better. When I then my orthopedist recommended the Blackroll I hardly gestezt hope in this very simple device. To my surprise, all the symptoms are gone after a short time under regular use of Blackroll. Initially, the use of role was very painful, but after a while it was getting better. A good tip my orthopedic surgeon was to use the Blackroll to settle on a wall, thus can firstonce regulate the pressure itself and increase it continually until you can use the Blackroll also on the ground without major pain. Certainly I can understand the opinion of many critics, that does not justify the actual material cost of the role the price, but for me an extremely good investment in a pain-free life were these 30. The therapies that I have done before and have not really helped in the long term were more expensive by a multiple.