Hendecagonal duoprism

The hendecagonal duoprism or handip, also known as the hendecagonal-hendecagonal duoprism, the 11 duoprism or the 11-11 duoprism, is a noble uniform duoprism that consists of 22 hendecagonal prisms and 121 vertices. It is also the 22-10 gyrochoron. Together with its dual, it is the first in an infinite family of hendecagonal dihedral swirlchora.