Premium Quality TENS Electrode Pads: improved carbon film, good conductivity, low impedance and uniform current distribution. Reusable Electrodes: bio-compatible, non-irritating, latex-free and superior environmental adaptability of hydro-gel. Excellent Self-Adhesive Performance and Easy to Use: good sticky, quick grab, easy to peel and dry-out resisting; the individually bagged for convenience of storage and use. Universal Compatibility: work with most TENS and EMS in the market with 3.5mm snap connectors; the Small, Medium and Large pads to target different massage locations for a better massage experience. Money Back Guarantee: contact us for Full Refund or Replacement for any product quality problem. These are premium self-adhesive and reusable electrode pads that are made with high quality adhesive for reusability. They are pre-gels and do not require additional creams or gels. The durable integral structure allows patients easily removing by pulling up from the leaf tail without damaging the structure; up to 30 times reusability by using in the right way. They are companion for most TENS units, or Electrical Muscle Stimulation Machines that use the industry standard 3.5mm Snap on Connector, with brands including: AccuMed, Belifu, Eunon, HealthmateForever, HiDow, IQ Massager,KEDSUM, loverbeby, Magic Massage, Massage Therapy Concepts,medvive, MiroPure, NURSAL, Ohuhu, SUNMAS, TEC.BEAN, TechCare Massager, TENKER and more. colour:white Material:Non-woven + hydrogel size:Single piece size: 4.5*7.5cm Package Contents: 20x Electrode Pads Tips: 1. Wash skin thoroughly and then dry it before applying electrodes. 2. Apply the whole surface of the electrodes firmly to the skin. 3. Do not use the same electrodes on different people. 4. Do not apply to broken skin. 5. When electrodes begin losing adhesion, gently rubbing one or two drops of water onto gel surface may extend usage. If not, replace with electrodes. 6. Store in the bag in a cool, dry place between uses. Only t