Eight replacement self-adhesive gel pads to be used with the Beurer EM 59 Digital TENS/EMS Device.The Beurer EM 59 Digital TENS/EMS Device is used for pain relief without the need for medication. It delivers natural pain-killing telectrical nerve stimulation (TENS) direct to the site of pain and EMS massage, plus soothing warmth. There is an impressive range of treatment options including TENS, EMS and Heat to ease pain and restore or relax muscles, TENS and EMS only, or Heat only. The treatment intensity is fully adjustable with two independent channels so you can get the balance just right.