I love mine. Initially keeping them in was a bit difficult. ZNow I can easily carry them inside me for hours. I love the popping sound they make as they come out. All wet and hot from being inside me. My vaginal muscles are even stronger now than before with only kegal exercises. The full feeling is such a turn on throughout the day.
my favorite ones are beautiful blue cloisonne` and have little bells inside. The make a gentle soft chime as I walk. I wouldn't put them in my ass!
the other set is pink and connected. In answer to your question I have never used them anally.