Cartier seems to have found a new market Edit: apparently these are rings that are held between your middle and ring finger with constant pressure. I think my first assumption was the Butt Plug Anal Toy Colorful Jewel Metal Stainless S M L For Women Men Couples eBay Cartier released a ring shaped like an anal plug. But you don't slide it on your finger it's just meant to be held in your hand. The price for this not so basic Cartier unveiled a ring with a bold design that closely resembles an anal plug. However, it's not intended to be worn on a finger the piece is designed to be held