The Pinging Marciale is a spherical echinoid Jelleton encased in a globular metal shell. The shell consists of three layers, each assembled with two bowl-shaped halves interlocked by metallic teeth. These teeth form a jagged crease that wraps around the Marciale between two facial ports on opposite ends of the shell. The exposed faces each consist of two lopsided red eyes and a circular mouth of five teeth, forming a star shape like the mouths of sea urchins.