Soft-Touch Cloth Electrodes (tyco gel) 2" x 2". Self-adhesive, high quality gel electrodes, 45 ohms of resistance. Reusable (10-15 or more uses per pad). 4 electrodes per package. Universal for all TENS and EMS units with the pin-type connector. Flexible cloth backing provides comfort and flexibility, carbon backing allows superior conductivity. Ultra tight pigtail connector and a snug plug. Prewired and reusable electrode. Effective for use with: TENS, EMS, Interferential, Micro current, Galvanic Generators.