A major step forward in design and engineering, mStrides feature patented DynaFlux Magnetic Technology and exceptional comfort. Patented DynaFlux provides 100% coverage and intensifies the magnetic field for greater depth. With mStrides in place, walking creates a dynamic energy flow — in effect, a magnetic field generator inside shoes. FEATURES AND BENEFITS DynaFlux allows each magnet a precisely controlled degree of movement When applied against a surface, will cause slight shifts in angle, as the opposing magnets change position relative to each other Repeated action produces a dynamic magnetic field FEATURED NIKKEN TECHNOLOGY Patented DynaFlux Magnetic Technology (U.S. Patent No. 9,265,966) Gs RATING 800-1000 Gs MATERIALS Ferrite magnets, low-density polyethylene, high-density polyethylene HOW TO USE Trim to fit if necessary. Insert into shoes. WARNING: If you use an electronic medical device such as a pacemaker, or have a magnetically sensitive surgical implant, do not use or wear magnetic products. Women in the first trimester of pregnancy, or anyone with a health problem should first consult a physician before using magnetic products. When cutting insoles to fit, trim carefully and remove sharp edges or projections. If discomfort or irritation occurs, discontinue use and consult your medical professional.