I sounded for years working up to 12mm. I have 12 inch long solid steel rods". I also have shorter 8" rods that are hollow. I could take the smaller diameter rods up to 8mm all the way in through my prostate. I also could take the shorter rods all the way in and even had them in while on long drives. I could edge pushing the rod deep into my prostate keeping that wonderful tingle going for hours.

One time we were at a rest stop and I had to pee. All the stalls were occupied so I went to an empty urinal. I pulled the 8" rod out and the guy at the next urinal watched as I pulled it out. I looked at him and he didn't look away. He then said nice. I peed and he watched as I pushed the rod all the way back in. I had the 9mm in my cock that trip. I joked I was carrying a 9mm in my gun.