The pad on Backnetix gently compresses the acupressure point in the center of the calf muscle so it intercepts the pain before it can radiate up & down your body. If you suffer from agonizing lower back pain, you can now stand up & cheer because we have found relief for you. Simple, quick, easy, effective relief. Just slip Backnetix on below your knee & tighten the straps. The cushioned 3cm pad hits an acupressure point in the middle of your calf muscle that will activate immediate pain relief.