The AccuRelief Universal Supply Kit is designed specifically for use with AccuRelief transcutaneous electrical nerve stimulators (TENS) and electrical muscle stimulators (EMS) units. It has eight sets of two reusable snap electrode pads with two lead wires. The snap electrodes make it easier to attach and detach from the lead wire connection. Lightweight, flexible electrode design shapes to almost any part of the body. Each pad is reusable for up to 30 times. Clinically proven for safe and effective pain relief.