ProFx wristbands produced by Pro Health Inc. are 100% surgical grade silicone with two frequency charged holographic data disks to help with strength, pain relief and also protect the body from electromagnetic frequencies. They are proven to work and are not the cheap imitation knockoffs on the market today. They are completely safe and use no harmful negative ions. ProFx wristbands are by far the best product sold today with this technology. Get yours and experience the instant results today.