After a year of permanent head neck and shoulder pain with dizziness I bought because of the good reviews a Blackroll - more or less out of desperation and as a last attempt. After only 3 days of use, each 5-10 minutes a day, I felt the first easing aching bodies after a week I was free of symptoms; even if I myself could scarcely believe that, adieu painkillers. I use my Blackroll now daily during the lunch break for 5 min. And once for 5 min. In the evening in the commercial break. My thoracic verspringt no longer, I can continue my purposeful strength training again with relaxed muscles and work without pain. Doctors, physiotherapists, masseurs and osteopaths and acupuncture could always just for a few days or do not help at all, or the situation has worsened. Compared with the medical bills I stage the Blackroll as favorable. The previously invested time of doctor visits, sitting around in the waiting room, treatment times etc. I won at leisure. The relief not to have pain and dizziness day gave me a lot of quality of life and I can throw myself in a better mood again fully into the professional and private life. From me a clear recommendation for the product.