Universal Compatibility; Universal pigtail electrode pads fit most TENS (Transcutaneous Electrical Nerve Stimulation) units, EMS (Electrical Muscle Stimulation) massagers, and muscle stimulators. The pads are comfortable to the touch, featuring white non-woven backing with black carbon conductor and premium gel adhesive. Reusable TENS electrodes are designed for multiple uses when applied and removed with care, providing excellent conductivity. Self-adhesive TENS unit electrodes are conductive and compatible with standard 2.0 mm pin connectors, fitting most 2.0 mm male connector leads. Safe and latex-free, these non-irritating pads feature a 2.0 mm female connector and are soft and comfortable for use. Made with soft non-woven backing, the flexible pads easily conform to body contours, ideal for use on the back, shoulder, leg, arm, neck, calf, and other areas. The black carbon conductor ensures reliable conductivity without shocks during therapy sessions. These replacement electrode pads are safe for home use and proven effective for electrotherapy. Pre-gelled with latex-free adhesive, they are gentle on the skin and suitable for daily pain relief treatment. Color: White. Material: Non-woven. Warm Tips: Before Application: 1. Clean and dry the application area. Apply only to unbroken skin. 2. Open and remove electrodes from packaging. Keep the original packaging for storage. 3. Peel electrodes from the release sheet by lifting the edge. Do not pull by the wires. 4. If electrodes appear dry or lack adhesion, apply a few drops of water to moisten the gel and wait a few minutes to rehydrate. 5. Place electrodes on the treatment area. Press firmly along the edges and over the entire surface to ensure good skin contact. Removal: 1. Gently peel off the electrodes. 2. Clean the electrodes with a non-alcohol wipe or rinse with cold water, then allow to air dry. Keep the sticky side facing up to avoid unintended adhesion. 3. Return the sticky side to the clear backing sheet and store in the original packaging. 4. Store in a cool, dry place away from direct sunlight and extreme temperatures, which may damage the gel. Electrodes may also be stored in the refrigerator to extend lifespan. Package Includes: 40PCS Wired Electrode Pads Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual product. Measurement allowance is +/- 1-3 cm.