●UNIVERSAL COMPATIBILITY - Our TENS model pads are designed to fit your muscle stimulation machine with pigtail snap connectors sized 1.8 - 2.2 mm. It is compatible with the popular TENS / EMS unit such as AUVON Rechargeable TENS unit, United Surgical TENS 7000, HeathmateForever YK15AB, Santamedical LFM-110, truMedic TENS machine. ●REUSABLE: This TENS electrodes pads can be used multiple times for optimal relief from discomfort. Simply use the resealable package to keep your pads fresh and clean. ●Superior Self-adhesive: This premium TENS replacement pads ensures a firm and comfortable attachment to your back, chest, leg, shoulder and arms, knee or sciatic nerve with ease! ●Trusted Quality: This electrodes pads are FDA Cleared OTC with resealable packaging for durability. They are latex-free and non-irritating to ensure users of all skin types have a safe, comfortable experience! ●SUBSCRIBE & SAVE: Save money by subscribing to get your supply form DONECO. DONECO is the #1 brand in Electrodes pads!