This is the D120, a 120-sided die that measures 2-inches in diameter and weighs a fifth of a pound. I bet it sounds amazing rolling across a wooden table. I also bet rolling a 120 is an exhilarating feeling like when the shower water turns cold all of a sudden and it gives you a boner. Sends tingles down my spine just thinking about it.
According to The New Yorker, mathematician Robert Bosch spent almost 2 months running computations to come up with a numerically fair arrangement for the die, which Henry Segerman discusses in his video below. The die's shape, a disdyakis triacontahedron, contains the maximum number of faces for a practical die, i.e. one that's symmetrical and can be rolled to produce a random result.
Well how about that? I guess they're right too, any more sides and that thing would pretty much be a sphere. You can't roll a ball for a die! Well I guess you could, but you're never not gonna roll a 1.
Keep going for a video about the die, you can buy one HERE for $12.
Thanks to Marion, who made a 341-sided die out of a wadded up piece of paper.