Browning Men's White Polypropylene Sock Liners (Large 10-13) 2% spandex The magnets are arranged according to the acupressure theory, so you even don't need to know the theory and it still does its job. 8 cooling magnets produce gentle magnetic waves with natural magnetic fields & cooling, soft, smooth stones.Balance energy in your body to reduce stress, increase energy, balance mind & body, and increase fitness. Relieve Pain:It is created with massage nodes developed after reflexology and acupuncture practices. Every time you step, the shoe insert presses against specific parts of the foot to relieve pain, prevent cramps, and ease tension all over the body. Improve posture : It effectively reduces pain and makes walking more comfortable to encourage you to stand and walk properly. So besides giving you natural pain relief, IT can even help correct your posture. You can change the size by cutting according to the available curl line if necessary. Easy cut to fit your foot.Separate sweat and Deodorizing, washing and using freely.