Set of 4 replacement TENS unit electrode pads Universal pigtail 2mm lead connector Compatible with many TENS and EMS units Pre-gelled and self-sticking for easy use Includes a resealable pouch with protective film FEATURES SAFE AND EFFECTIVE Safely and easily replace worn or damaged electrode pads with FDA approved replacement electrode pads for effective pain-relieving treatments COMPATIBLE WITH MOST UNITS Features standard 2mm lead connectors for use with most TENS, EMS, and muscle stimulation devices SELF-ADHERING GEL Pregelled with a conductive hydrogel, the tens unit pads adhere to the skin without leaving a sticky residue behind FLEXIBLE FABRIC DESIGN Measuring 2” by 3.58”, the rectangular electrode pads are made with a flexible non-woven cloth that contours to the body for optimal placement SKIN-SAFE MATERIALS Latex and PVC-free, the replacement electrode pads are non-irritating and safe for all skin types REUSABLE SET OF 4 Safely store the reusable electrodes in the resealable pouch to prolong their lifespan