MAGNETIC INSOLE: 18 magnets can bring enough massage to the soles of the feet to relieve fatigue.After 3 months of use, the magnetic force gradually disappears. It is recommended to replace with a new Insole.Mens Magnetic Insoles - Massaging insoles made of high quality medical silicone,It can effectively deodorize, durable, non-toxic, soft and comfortable, and breathable.Magnetic Shoe Inserts - One Size Fit Most(11.42 inches), You can change the size by cutting according to the available curl line if necessary.Shoe Inserts with Magnets - Helps Increase feet blood circulation, soothes and relieves the pain. These inserts provide arch support and pain relief caused by plantar fasciitis. Guaranteed results with these acupressure insoles for feet.Magnetic Insoles - Please try slowly, don't take too long in the beginning, the effect of acupressure will comb your blood, this is the real role of the massage insoles.