![7in\](img-large/g/3gYAAeSwnp1qlvAF/s-l1600/7in-180mm-Optical-Glass-Triangular-Prism-Teaching-.jpg "7in\")
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7in\" 180mm Optical Glass Triangular Prism Teaching Light Spectrum Physics USA:
$18.99
Box is damaged on sides but prism is brand new
