The Soterix Medical SNAPpads provide simple and consistent set-up. Each SNAPpad comes with a pre-inserted carbon rubber snap electrode that is designed to work with the SNAPpads and connects directly to designated electrode sites located on the SNAPstrap. The proprietary rivet design helps to minimize current concentration at electrode edges, which can lead to current density “hot-spots”. Whereas other sponge electrodes result in current concentration at the edges leading to variable tolerability, rivets steer current uniformly across the skin surface. In addition, the sponge material is optimized for saturated skin contact for the duration of a tDCS/tES application. SNAPpads are compatible with Soterix Medical SNAPstraps, allowing for accurate and reproducible sponge placement.