This is like the thread “What you only see at a Dommes place.” Definitely a cross of some type, and I do have a funny story about accidentally pulling the bolt & shackle attached to my right wrist out of the wall in my lust to get closer to the Mistress. (She didn’t get angry about it. In fact she was turned on.) Separately for those Dominas who embraced my “jungle” role play and had the equipment, I was put in cages at least three times to start a session, most notably Tara Indiana’s NYC dungeon of the late 1990s.