These cucumber shaped plugs are simply electrifying. They can be used anally or vaginally. Most start off with the small size anally and then work their way up. Once inserted you can experience a mild or wild sensations of pleasure depending how much power you give these torpedoes. They work with all of our Zeus Power Units. The Folsom and Erostek units will need our KE110 adapter. Bi-polar design makes use easy, just plug and play.