Otafuku leather shoes Mens GR-110 BLACK (紳士靴 レザー GR-110) Men's magnetic shoes from Otafuku of Japan. In Japan since 1950‘s, it’s been the one of Japan’s long-time sellers for some generations. A total of 6 magnets on a pair (3 on each) designed to provide static magnet energy to the wearer. These magnets are installed inside the shoes or sandals to stimulate the feet and help blood circulation more effectively when walking and is believed to promote increasing the oxygen flow in the legs and feet. Comfortable to wear with a loose and wide 4E The heel part is made of a special material designed not to lose its shape as much as possible so that it is easy to wear without the need for a shoehorn. The sides are soft and resistant to water, so I think you can use it on a daily basis. Reliable made in Japan and solid construction. - Upper: Cowhide/synthetic leather - Sole: Synthetic Please consult with your doctor before purchasing if you use any electrical device such as a pacemaker.