Heptagrammic prism (7/3)
In geometry, the {7/3} heptagrammic PRiSM is one of an infinite set of nonconvex prisms formed by square sides and two regular star polygon caps, in this case two {7/3} heptagrams.
In geometry, the {7/3} heptagrammic PRiSM is one of an infinite set of nonconvex prisms formed by square sides and two regular star polygon caps, in this case two {7/3} heptagrams.