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Diffraction Grating Rainbow Peephole pack of 100

Diffraction Grating Rainbow Peephole pack of 100 - RS01601pk100 -
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Diffraction Grating Rainbow Peephole pack of 100 - RS01601pk100 - 1
$29.95
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Product Code: RS01601pk100

 

Fun with Diffraction Gratings!! Preprinted Rainbow Peepholes™. The ideal5 teacher incentive. Great in the classroom when a quality diffraction grating is needed for the study of Light and Color. Just look through your Rainbow Peephole at any light source...the rainbow starbursts will amaze you! RAINBOW PEEPHOLES: 13,500 Line/Inch Diffraction Grating - 1 11/16" Diameter, 1/2" Window - Heavy Carboard.

pack of 100