Fun Factory B Ball UNO Anal Plug is anything but your regular butt plug! Made with a weighted inner core, every motion you make with this toy make the weight bounce, roll, and rumbles in response! Use this toy with a partner and get more from the motions. This plug will give you powerful feedback with every thrust and sweep. Wear it during vaginal sex for an extra feeling of fullness: its round shape will angle your partner or toy into your G-spot.