Bought for me by one of my gay naturist friends who wants to "introduce" me to the joys of anal penetration.
When I first saw it I thought "No way!" (it was the 1 1/2" diameter size) but Christopher insisted I'd like it. I tried it (with LOTS of lube) and was surprised when I got it past the head and it slid in and my ring tightened around it. It felt comfortable from the word go and I wore it for about 4 hours the first time, gradually increasing the time until I wore it for a week (only taking it out for the usual).
After the week, I slipped it in (enjoying it now) and showed it to Christopher. He got quite excited.
I love the feeling of being full and wear it virtually constantly including riding my motorbike. T
he only "problem" is the flange surrounding the jewel does force the cheeks apart. An oval shaped flange would be better.