Review Content Havent tried it yet due to time. Purchased for pain relief and to improve mobility. SpineDok relaxes back The Spinedok is the most useful gift I received this Christmas. I opened it, immediately tried it out, and then all in the room proceeded to try it. They all agreed it made breathing easier, relaxed the back muscles, and made you want to take a rest! I use it everyday (most days 2 times a day) for 3-5 minutes at a time! great stretcher Ive been using this every night gradually increasing the time Im on it, as recommended. Its a good stretcher for your back but a little more padding under your spine would be nicer. Good stretch Good stretch but I dont notice any overall improvement to back soreness or stiffness after three weeks.