I’d never had butt plugs before. The end is tapered for easy insertion. I’ve always loved glass. It is nice and smooth, easy to clean, doesn’t absorb bacteria and can be chilled or warmed. When I worked up to the middle sized plug, I started getting horny just wearing it a little while. The largest one, drove me crazy. Much to my surprise because I thought I didn’t like anal sex and was just trying these because I promised I’d give it a try. I’ve actually had an orgasm rocking back and forth with the big one in. They are a bit weighty sometimes I have a hard time keeping them in when I walk around.