Digonal-pentagonal tetraswirltegum

The digonal-pentagonal tetraswirltegum is a convex isochoric polychoron and member of the duoprismatic swirltegum family with 40 identical cells.

Each cell of this polychoron has bilateral symmetry, with 2 mirror-symmetric octagons, 1 rhombus, 6 kites, and 2 isosceles triangles for faces.