E-Stim or Electro Stimulation has become quite popular recently. Adding a new level of excitement, E-Stim is a technology which creates tiny shocks that are specifically designed for sexual pleasure. Even though it sounds painful, when done correctly it can be quite fun and feel amazing. Most kits allow a small amount of stimulation or a big amount depending on the person and their pain threshold. If you are looking for a great addition to your bondage collection, E-Stim can be just that!