This thing is really good for neck pain, shoulder and arm pain due to neck problems. It will remove nerve pressure from bulged, protruded and herniated discs. It really does work. My neck was too far gone and had to have surgery three weeks ago. I wish I would have gotten one years ago. They have wanted to cut on me since 1999. I paid 95.00 plus tax. I'll take 50.00 for it. I've had it for 5 weeks. It's like brand new and in the box. If interested call or text 850-380-5130