DR-HO'S Extra Large TENS Replacement Pads are designed to provide broad and effective coverage over large muscle areas such as the lower back, thighs, and shoulders. These self-adhesive pads, measuring 4.69 x 3.06 inches, offer long-lasting, comfortable adhesion, allowing for deeper penetration of electrical signals to effectively relieve pain and muscle tension. They are compatible with all DR-HO'S pain therapy systems and are made from hypoallergenic materials, ensuring safe use on sensitive skin. Each pad is designed to withstand 70-100 uses, making them an economical solution for ongoing pain management. Additionally, their water-activated gel design eliminates the need for additional gels or creams, making them easy to apply and ensuring a clean and efficient user experience.