A must have for anyone with any type of pain. This massager can be used on back, neck, legs and even stomach. There is 8 rotating knobs 4 on each side that helps workout the pain and give you relief. I use mine mostly on my neck to help with my headaches. There is a soothing feel of heat when using this massager. A great thing is that if traveling you can take it with you, there is a strap to go on the cars head rest and also a plug in for the cigarette lighter outlet.