Bronze-infused stainless steel with visible print lines and rough feel.
About this Product
A d4 made of four spheres. Like a methane molecule without the carbon. Based on a dice constructed by Kevin Cook (original can be found at http://www.dicecollector.com/DICEINFO_DICE_BUILT_OR_DESIGNED_BY_ME.html ), which he in turn based on US patent 4,635,938.