Today's balls are made of polymer, replacing celluloid since 2015, and are white or orange in color, with a matte finish. Choosing the color for the ball is based on the color of the table and the surrounding playing environment. https://wiki.natlife.ru/index.php/%D0%A3%D1%87%D0%B0%D1%81%D1%82%D0%BD%D0%B8%D0%BA:Wi88la