UltraStim X electrodes are a brilliant blend of manufacturing techniques and superior design to offer flexibility, durability, and economy. The unique cutting-edge manufacturing process for UltraStim X results in exceptional quality as well as exceptional value. This electrode features a proprietary silver grid pattern, which is calculated precisely to control electrical current evenly over the surface of the electrode. UltraStim X electrodes are made with a patented multi-layer MultiStick hydrogel, an industry proven leader with uncompromised adhesion and performance. These electrodes each measure 2 by 4 inches and are rectangular in shape. There are 40 electrodes per case.