Highly recommended for foot discomforts and poor circulation in the feet and legs. Description The entire surface of these high power insoles is magnetized using a patented magnetization pattern, especially developed to deliver a much deeper penetration than most magnetic insoles. This deep penetrating magnetic stimulation boosts the performance of every organ and system in the body. Helps relieve discomforts in the feet and legs, energizes and strengthens the body. Flexible yet highly durable to withstand millions of footsteps. Available in Large (to men’s size 13) or Small (to women’s size 9). Easily cuts to your size using regular scissors. Size template included. Magnetic Material: Magnetic Rubber Manufacturer's Rating: 2,500 Gauss Surface Gauss: 350 Gauss (all over) Penetration: 1.5" (4cm) Polarity: Bi-Polar (- & +) Caution Persons fitted with pacemakers, defibrillators, implanted insulin pumps or other electro-medical devices should keep magnetic products at least 18 (45cm) from the device. Pregnant women should consult their health care professional before using magnetic products.