Octagonal-enneagonal duoprismatic prism

The octagonal-enneagonal duoprismatic prism or oep, also known as the octagonal-enneagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 octagonal-enneagonal duoprisms, 8 square-enneagonal duoprisms and 9 square-octagonal duoprisms.