Magnetic massage insole is made up of permanent magnets(800 gauss) and high quality plastic. 
It can make the blood vessel of thenar outspread,absorbing the heat, and transmit the heat to apparatuses all over the bady, urge the deleterious material of blood vessel, such as Calcium,Lactic Acid,Uric Acidexerete outside quickly, and then make your blood circulate fluently. In addition it is uniquely designed, scientific construction, which has a very good function for thenar massage.
The size can be adjusted by cutting according to the available curl line if necessary.