Pretty Plugs Medium - Aurora BorealisMade from surgical grade stainless steel, these pieces of bling for your booty have genuine Swarovski crystals in them. When these medium sized plugs are inserted, the crystal is exposed as a darling adornment for the posterior. This plug is bacteria resistant, easy to clean and will quickly warm to body temperature. The following model numbers are related to this product via product options: 99104, 99105, 99107