It's time to step in the tub and relax. This bath bomb is sure to get the job done. A sweet confection with white cake and hints of creamy, sugary vanilla frosting. Our 6 oz bath bombs are roughly the size of a tennis ball. Ingredients: Sodium bicarbonate (baking soda), citric acid, magnesium sulfate (epsom salt), corn starch, coconut oil, shea butter, fragrance, water, and mica. Size - 6oz.