Butt plug recommendations

Looking to replace a good set of 3 plugs I had (wife wont allow me to keep them in the house) They were cock shaped and short.

I see there is a new one out called the Insta-gaper. Supposedly it will open up once inside you, like an anchor bolt Anyone have experience using them?

I wonder if there is indeed enough elastic forse for it to overcome the strength the inner walls of the rectum so as to expand it. Can it harm you? With a manual forse entry, you stop when you feel pain. But if this things blows up inside you, you might have to yank it out ASAP without giving your rim enough time to expand