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12-pack Color Mixing Acrylic Sheets - Transparent Color Synthesis Light Filters, Non-electric Optical Experiment Tools, Educational Sensory Toys For Science Activities & Party Decorations

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Geometric Optics Experiment Kit Concave-Convex Lens Refraction Optical Experiment Kit

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Principles of Optics: Electromagnetic Theory of Propagation Interference and Diffraction of Light

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