500g per pack. -Made from durum wheat semolina. -Original since 1948. -Kitchen Tested. -Chef approved. -Ziti is an extruded pasta. It is smaller than rigatoni, but larger than mezzani. Ziti may have smooth sides, but the addition of the word rigati denotes lines or ridges on the pasta's outer surface. Ziti is similar to penne, but often has ends cut in a straight line versus diagonally.