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This 100-sided dice is extremely difficult to find in Japan as well as in the United States as in the USA.
4cm 18g US Patent US Patent: No. 303553.
Manufactured by American Dice Maker GamesCIENCE Made in the USA
3-layer special structure gives it a luxurious feel.
1 layer: transparent plastic 2 layer: letter 3 layers: anti-rolling bead weight