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 316LVM Surgical Grade Stainless Steel, as all of our Surgical Steel items are. Being from the Economy line it does not have the same polish as most of our pieces though. It is available in several Gauges but only in 3/16" length. However we do have our custom made Deluxe line available in many more gauges and sizes and is also available in circular and curved barbel variations, all of which you can find with this search;

http://www.thechaingang.com/advanced_search_result.php?keywords=intimate&search_in_description=1&homepage=1&x=0&y=0