Mini K9 Crystal Glass Prism Cube,Optical Glass RGB Dispersion Prism X-Cube for Physics Teaching Art Decor Photography Props,15 * 15 * 15mm
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Optical Glass Light Spectrum Prism Basic Physics Teaching 4PCS
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Sumnacon Dispersion Polyhedron Glass Prism, 20mm RGB Optical Glass Photography Prism with Full Rainbow Color Crystal Prism for Teaching Light Spectrum Physics Decoration Gift
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EISCO Optical Glass Lens, 3" (75mm) - 200mm Focal Length - Ground, Beveled Edges - Use as Top Spinning Base
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6 Pcs Acrylic Glass Light Prism Optical Lens Triangular Semicircular Rectangular Concave Convex Mirror Len Physics Demonstration Tools Equipment for Physics Teaching Lab Reflection Refraction Science
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Amlong Crystal 6 inch Optical Glass Triangular Prism for Teaching Light Spectrum Physics and Photo Photography Prism, 150mm
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Optical 3D Lens for Magnifier - 20 Pcs 42mm Diameter Double Convex Lenses 68mm Focal Lengths Biconvex Lens Magnifying Glass Lens Optical Plastic Lens
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QFkris 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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QFkris K9 Crystal Optical Glass Prism Cube Paperweight Ornament Art Glass Figurine Table Home Collectible Decor Photography Accessory (1.5inch,Cyan)
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Amlong Crystal 2.5 inch Optical Glass Triangular Prism for Teaching Light Spectrum Physics and Photo Photography Prism, 60mm
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