Octagrammic prism

In geometry, the octagrammic prism is one of an infinite set of nonconvex prisms formed by square sides and two regular star polygon caps, in this case two octagrams.

Octagrammic prism
Type	Uniform polyhedron
Faces	2 octagrams 8 squares
Edges	24
Vertices	16
Vertex configuration	8/3.4.4
Wythoff symbol	2 8/3 | 2
Schläfli symbol	s{2,16/3} sr{2,8/3}
Coxeter diagram
Symmetry group	D8h
Dual polyhedron	octagrammic bipyramid
Properties	nonconvex
Vertex figure