Perfect electrodes to accompany your TENS machine (TENS 3000, TENS 7000, etc.) High Quality Reusable electrodes. Package of 8. Multi-Stick Gel for Maximum Reusability. 2"x 2" SquareThese electrodes have advanced self-adhesive gel pads which are water activated and do not require any messy gel or belts to attach them to your skin. PROTENS are designed and intended to be used with marketed transcutaneous electrical nerve stimulators (TENS). The PROTENS electrodes provide the conductive interface between the TENS generator and the patient’s skin.The PROTENS electrode offers the following: Fast application and easy handling and removal Strong tacky adhesive Low impedance and high conductivity Self-adhering and reusable Various styles and shapes for each use Patented 2 layer Adhesive Gel A Better Electrode at a Better Price High quality, premium electrodes made for superior reusability. These electrodes are professional quality and very popular with healthcare practitioners for in-house use with their professional electrotherapy devices.