Delivery fast, despite the new year, here pleased. The device itself does not know how much it will help, but do not forget about it it makes and arbitrarily try to straighten yourself. For young people with poor posture is better than nothing. Don't wait for miracles. Rubbing the armpits, if on the naked body, when practicing physical education I'll try to put on a T-shirt. I'll see how much will last, the impression that the rubber bands will quickly stretch. But, again, for such money miracle...