Have you found your perfect match? That someone that tickles your fancy and would be ultimately devastating if they ever left your world; then the Plug and Socket Duo rings are well, perfect for you. Is this not the greatest and most unique creation yet? These rings really signify the love and/or admiration between you and that special someone. Even if it's just a best friend, this is a great gift to show that they really are the needle in your hay stack. If you link the rings together you'll find out that they fit perfectly inside each other. Some may use this as an engagement ring, but I think it's a fun gift to give on an anniversary, Valentine's Day, birthday or when they're least expecting it...which is always the best time.