SIXPAD works with advanced gel sheets. Specifically designed to be used with SIXPAD. Adhesive and residue free. Highly conductive for even distribution of electricity to the body. Safely deliver stimulation to the targeted muscle groups. Absorbs and evaporates sweat through its temperature maintenance properties, keeping your skin dry and comfortable during training. Low risk of skin irritation. Lasts for approximately 30 sessions. ​ Material: Acrylic Polymer