The makers of these 120-side dice claim that "120 faces ... is the largest number that is possible on a mathematically fair die" and we are inclined to believe them. The go on to say, "You can't go any bigger. There aren't any more symmetries." You hear that, die makers? Just stop it already. These guys won the massive die game, and everybody else is just going to have to deal with it. As for who is going to win the game that you play with these dice, that will be determined once such a game is invented.