We are not going to tell you where this one goes. It can be used for many different piercings from ears to labret and many others, but it is called the "Intimate Button", and was originally designed for the most intimate locations on both men and women. It is naturally made out of 316 LVM Surgical Grade Stainless Steel, as all of our Surgical Steel items are. It is available in several Gauges but only in 3/16" length