Enneagonal duotruncatoprism

The enneagonal duotruncatoprism is a convex isogonal polychoron and the seventh member of the duoexpandoprisms that consists of 18 dienneagonal prisms, 81 rectangular trapezoprisms, 162 wedges and 81 tetragonal disphenoids obtained as the convex hull of two orthogonal enneagonal-octadecagonal duoprisms. However, it cannot be made uniform.