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"science kits"

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Kit, Optical Voice Link

Item Number:  (470004-994)

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Equilateral Prisms 3pc set

Item Number:  (470328-146)
Equilateral Prisms 3pc set, 1in, 2in, and 4in lengths, Material: Acrylic, Each prism is individually wrapped to protect it Will create a rainbow with any standard light source (phone will work) -- use a dark piece of paper with a 1-2mm slit, Size: 25mm face size

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