Photo 1 of 2 Pack 6inch Crystal Optical Glass Triangular Prism Clear Triple Prism for Photography Effects Physics Teaching Light Spectrum Optics Kits,Clear

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Photo 1 of 2 Pack 6inch Crystal Optical Glass Triangular Prism Clear Triple Prism for Photography Effects Physics Teaching Light Spectrum Optics Kits,ClearPhoto 2 of 2 Pack 6inch Crystal Optical Glass Triangular Prism Clear Triple Prism for Photography Effects Physics Teaching Light Spectrum Optics Kits,Clear