Enneagonal-dodecagonal duoprismatic prism

The enneagonal-dodecagonal duoprismatic prism or etwip, also known as the enneagonal-dodecagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 enneagonal-dodecagonal duoprisms, 9 square-dodecagonal duoprisms and 12 square-enneagonal duoprisms.