Cocalidroni fibers are a blend of aliphatic and polyphthalamide polyamides (nylon plastics) reinforced further with carbon fibers and other, yet-to-be-identified polymers. Its rubbery skin is composed of a soft faux-leather-like vinyl. The inner core is a delicate polystyrene-based foam filled with argon gas. Its eye markings are similarly hard polystyrene with carbon acting as pigment. Like all strangers, the animation of its body does not occur from any physical processes that we can discern, but is instead moved through some unknown means, as if being played with by a being on a higher plane.