Una correa para dormir bien? O como va eso? No se como funciona. Eso existe de verdad?

I get back pain a lot and this product helped them go away in minutes. It's very useful.

This is mostly if you have a pain or injury and am it's really good because it helps your back and it helps any area that you have pain and and it heats it up and it's just very great to have around oh just in case around and say or just if you have pain