The Hyperdo is a 3D projection of a 4D object called the 120-cell (aka Hyperdodecahedron).
But instead of trying to understand these words, get your hands on this kit and enjoy this stunning model!.

Temporarily out of stock. New supplies in 2nd week June.

Here's a YouTube video on building the Hyperdo by Kevin Kelly, Senior Maverick at Wired magazine (he co-founded Wired in 1993):

https://www.youtube.com/watch?v=1AC1nGpQl1M&t=32s&ab_channel=CoolTools