It works better than I expected. I needed to meet the minimum for free shipping. This looked like a good product for I have stiff sore knots in my neck. I put the ball under my neck and roll from side to side. AAAH! Turn my head and roll on the front of my neck. Aganin, AHHH! Not as good as a professional massage, of course! Still, better than a tennis ball and puts direct pressure on trigger points that you cannot reach with a foam roller.