Pain is a perception in the brain generated by an electrical signal at cellular level in the body when neuron firings are transmitted thru the peripheral and central nervous system to the brain. QuadraBloc™ is a unique, therapeutic, non invasive, non pharmacological alternative for pain management which uses a patented four magnet array (It is placed immediately over the source of the affliction) QuadraBloc™ has been used to treat knee pain, neck pain, back pain, the sciatic nerve, tennis elbow, shoulder pain, wrist pain and joint pain. The reduction of the electrical signal produces a reduction of tissue inflammation and swelling (edema) so as to accelerate rehabilitation and healing. This unique magnetic device was developed in a formal research program by several professors in the Department of Neurology at Vanderbilt University Medical School. QuadraBloc™ is now marketed by Gradient Medical LLC in the United States. A less powerful form of the product has been marketed directly to the consumer under license from Gradient Technologies LLC by AmWay Corporation for the last 10 years under the trademark MagnaBloc in 40 countries around the world. This website describes the anatomy of pain, the QuadraBloc™ technology underlying the device from its origin in the research labs when studying single cell to patient therapeutic applications performed in the clinical setting in doctor’s offices for a vast variety of indications. The site includes testimonials of actual QuadraBloc™ and MagnaBloc™ patients as well as a shopping cart for the acquisition of the QuadraBloc™