Excellent Adhesive Reusable Electrodes: The tens pads are made with upgraded industry-leading adhesive which provides excellent self-stick performance and is easy to clean..Individual Seal Package: Included 4 pack tens replacement pads, each comes with an individual package. Sealed design for convenience of storage and use. Compatible with Comfytemp wireless TENS unit KTR-2493..Suitable for All Parts: The 5.1" x 2.4" tens machine pads are applied to parts of the body, such as the back, shoulder, neck, and leg. The electrodes provide better conductivity with printed carbon film and easy installation and removal with a magnetic button..Soft & Safe: The electrode pads are certified by professional organizations and safe to use. With a non-irritating latex-free design, no need to worry about skin sensitization and other problems..How to Use: Please clean the skin first to remove the oil and dirt from the skin. Otherwise, it will not stick well if any oil is left on your skin. After each use, place the pads in their original packaging. If the stickiness becomes weak after a few uses, just wash it with water to restore the stickiness.