The large loofah bar is an extra large block of soap with a slice of loofah inside.  The weight of a large is between 5.8 ounces and 6.8 ounces.  The small loofah bar is half the size of a large bar.  The sunflower molds come in 2 sizes, small and medium.  The ingredients are the same as all other soaps, except for the additional loofah. .