Heptagonal-octagonal duoprismatic prism

The heptagonal-octagonal duoprismatic prism or heop, also known as the heptagonal-octagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 heptagonal-octagonal duoprisms, 7 square-octagonal duoprisms and 8 square-heptagonal duoprisms.