Solid with a four-sided top and bottom

This version uses a truncated square bipyramid style form: a four-sided face at the top, a four-sided face at the bottom, and 8 quadrilateral side faces — so 10 four-sided faces in total.

Faces
10 quadrilaterals
Vertices
12 points
Caps
top and bottom are both 4-sided
Body
8 trapezoid-style side faces

This should read more naturally as a solid body than the earlier wire-only version. Faces are lightly filled, then a gappy wireframe is drawn on top.