Suffering from 6 months cervico brachial neuralgia causing me a little pain everywhere (neck, arms and back), I tried many things and I finally let myself be tempted by this famous carpets. I originally ordered the version 22 that I was not relieved or great effect renvoyé.Je so I told myself as much control the "true" if the quality is really different and indeed it n has nothing to do. The carpet is firm, the pins are firm too which really creates a sensation when we dessus.En my case, I was able to bare skin above from the first day because I find that there no effect with a tee shirt.Je have never found it painful to put on the contrary, it must depend on people. I use it now for 1 month 2 times a day: in the morning although it helps to stretch and calm down a little pain to get to move and at night it helps me to calm down the pain of the day and détendre.C'est become my ally, there is no miracle, I'm not cured but I can do more things than before and above all it gives me confidence in myself because when I feel that I will not tell myself that I can ease the pain later with the carpet. So fleeting relief but always what you what is better than nothing when suffering. I am fully satisfied and highly recommend it.