Just as the name suggests, butt plug tails consist of a butt plug (glass, metal, silicone or rubber) which is inserted into the anus, and a tail part that that falls gentle outside the anus giving the look of a real animal tail. The advantage of the butt plug tails, (aside from its feature as a butt plug) is that it offers fairly realistic tail movements and the attachment point is not easily seen. A butt plug tail can give the impression that your special animal has a real tail.