got my Omron TENS machine more than 20 years and it helps me again and again when the back stresses! After my old pads were over, I have bought this as a replacement. The adhesive properties are excellent and can be determined using the pads 200 x. However, they pollute, depending on skin condition (dry or greasy) at different speeds and can be ready after a few applications. This is not a problem if you then very carefully washes them with lukewarm water, slightly abtupft with Zewa and then allowed to dry slowly. Then you stick like new again! A negative point I have, however, which is annoying but easy. The push buttons of spare pads keep not as good as the old more. Particularly annoying is it when you are alone, the pads has glued to his back and then drop the cables. You have to press buttons to fix new then usually pull the pads again. Therefore, there is a point deduction!
