Near Infrared 880nm Red Light Therapy Pad for full Body Back Pain Relief 39.3in

  
Prevents muscle from soreness & fatigue. Relieve back, low back, shoulder and joint pain and inflammation. The back of the four light therapy pads is assembled with three Velcro. Align the two light therapy pads, paste a Velcro on the back of the light therapy pad, and paste the four light therapy pads in order.