vibrating face scrubber thing

OK so I bought one of those face cleaner things, the one that vibrates and spins, and it's sole purpose is for me to use as a sex toy. But how tf do I use it? 🤔 It came with 4 different scrubs I can attach to it, so which one is the one somebody would use down there? I don't wana scrape my vagina off. 🙁 Help pls.