This thing is amazing!!! It's firm enough to push into my ass without twisting, yet yields enough to make entrance delightful, not painful. I loved pushing it in and out of my ass, it has more definition between the maximum width and the base than most do, so it gives that satisfying pop! when settles in. I can walk around with it in for hours, I never have to worry about it working it's way loose or getting uncomfortable. A+++++++ A must buy for anal lovers. I'm off to go get a red boy dildo!