I would like to show with my video how you can handle a stiff back or constant back pain. For sure it's necessary to train the muscles but it's also important to release them. And that's what I do every morning with the duoballs for about one to two minutes - the whole back line. Try it, start with short sessions, sit down if it's to much for your muscles and roll slowly. If you have any questions, don't hesitate to contact me - and if you want to buy duo balls, I still have some on stock!