&quot;The d120 can be used as a dn, where n is any proper factor of 120. For the standard seven-dice polyset, a d120 is the ideal &quot;multi-die&quot;, as 120 is the least common multiple of 4, 6, 8, 10, 12, and 20.&quot;<p>- <a href="http:&#x2F;&#x2F;thedicelab.com&#x2F;d120tables.html" rel="nofollow">http:&#x2F;&#x2F;thedicelab.com&#x2F;d120tables.html</a><p>So you could whip one of these out instead of the usual Crown Royale bag full of a zillion different dice if you wanted to have a minimalist flair at your regular gaming session.<p>Mostly though I think it&#x27;s just a cool thing to add to that bag full of dice. You&#x27;re playing these games in part to fantasize about collecting lots of pretty gems, and this is like adding a big diamond the size of your fist to that collection of little rubies and sapphires.