I haven’t used an anal toy for a long time, so I couldn’t take as much as I’ve been able to. I was able to get 3 balls in, and it felt amazing. The settings and different vibration patterns make it so much more exciting. I squirted across the room. It is a big toy, definitely not for beginners. I’d say if you call almost get a small fist in, then it will be a breeze. I used the vibrations to help get two of the beads in, but the one bead needed it off so I could get a better grip to put it up my own ass. That helped make it a more pleasurable experience.