I Was Not The Only Using This For Pain Relief
After I got rid of my sciatic pain as a result of a large plasmacytoma that broke through the side of my vertebrae & was resting on my sciatic nerve!  I used it for squeezing my calf, where it was ALWAYS hurting  I used it for 6 months to get relief.  Then my mother had to use it for relief on her neck & is using it still.  The balls are located really well for getting neck relief, & is made very well with thick materials, mainly plastic.  Glad to have bought it.
Rating: 5 stars