ValuTrodeáFoam neurostimulation electrodes feature the same construction as ValuTrodeáCloth electrodes but with a white foam top. Every lead wire interface is customized for each electrode to optimize current distribution for all the various shapes and sizes. Featuring a multi-layer MultiStickáhydrogel, ValuTrodeáelectrodes are known for their durability and multiple applications to the skin. These electrodes each measure 1.25 inches and are round in shape. There are 40 electrodes per case.