Acupuncture Soles The magnetic insoles massages your feet all the time by stimulating soles of feet. Relieve body pain and tension. Weaken fat cells in body. Walk through to lose weight. Our unique magnet massage technology promotes blood circulation and helps relieve plantar fasciitis, chronic pain, muscle tension, stubborn knots. This magnetic gel massage insole/insert is uniquely designed to relax your muscles and very effective in the treatment of chronic lumbar sprains. Medical silicone - shock absorption, soft and washable. The magnetic foot insoles with 250 air holes designed to make the insole ventilation better and keep your feet cool. Material: Silicone & Magnets Available Sizes: 36-39, 40-44