The Obelus Googolplexian is a revolver with an overall length of 20 inches and a total weight of 50 pounds. It is chambered for 13mm, armour-piercing, high-explosive incendiary rounds that are each composed from depleted uranium of all things. It should also be noted that most, if not all, of its features are a direct result of Aronne using the Shuuji Shuuji no Mi to make himself believe that it has such features. Thus whenever it is in the hands of anyone but Aronne, it quickly becomes a much less impressive firearm.