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  1. Rainbow Glasses Item # P3-6300
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    These popular glasses will delight your students while offering you a cost effective, organized way to utilize diffraction gratings in class. Read More
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  2. 3D Glasses Item # P3-6100
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    See images in 3-D! Unlike the red and blue polarizing lenses you may have used in the past, these new glasses are made from precision micro-optic lenses that combine diffractive and refractive effects. Read More
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