Universal Compatibility; Universal pigtail electrode pads fit most TENS (Transcutaneous Electrical Nerve Stimulation) units, EMS (Electrical Muscle Stimulation) massagers, and muscle stimulators. Pads are comfortable to the touch, featuring white non-woven backing with black carbon conductor and premium gel adhesive. Reusable TENS electrodes designed for multiple uses when applied and removed with care; provide excellent conductivity. Self-adhesive TENS unit electrodes with conductive, one-size-fits-all pin electrode wires. Safe pads are latex-free and non-irritating to skin. 2.0 mm female connector fits 2.0 mm male connector. TENS electrodes are soft and comfortable for use. TENS unit pads are made of soft non-woven backing, flexible and conform easily to body contours. Ideal for use on back, shoulder, leg, arm, neck, calf, and other areas. Electrodes with black carbon conductor deliver reliable conductivity without shocks during therapy sessions. Replacement electrode pads. TENS unit electrodes are safe for use. 2x2 inch size proven effective for electrotherapy. Pre-gelled with latex-free adhesive, these electrodes are gentle on skin and suitable for daily pain relief treatments. 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 original packaging for storage. 3. Peel electrodes from release sheet by lifting the edge. Do not pull by the wires. 4. If pads appear dry or do not adhere well, lightly moisten gel with water and wait a few minutes to rehydrate. 5. Place electrodes on treatment area. Press firmly along edges and across entire surface to ensure good skin contact. Removal: 1. Gently peel off electrodes. 2. Clean with a non-alcohol wipe or rinse with cold water; allow to air dry. Keep sticky side facing up to avoid contamination. 3. Return sticky side to clear liner and place back into packaging. 4. Store in a cool, dry place away from direct light and extreme temperatures. Storing in refrigerator may extend lifespan. Package Includes: 40PCS Wired Electrode Pads Note: Light and display differences may cause slight color variation between image and actual item. Measurement may vary by +/- 1-3 cm.