d12 Twelve-Sided Die

D12 regular dodecahedron, 0.018 m face to face, twelve dead-flat pentagonal faces with the 0.6 mm chamfer ring, gold-leaf serif numerals 1-12 sunk 0.3 mm (6 and 9 dotted), opposite faces summing to 13.

风格：low-poly, flat-shaded vertex colors, no textures, 2 materials: the shared opaque one plus a distinct surface (glass, water or chrome), which stays its own mesh through mergeAssets rather than merging into the rest; shares palette and scale with its kit