Credit Card Payment for Classroom Spectroscope Poster Shipping
Diffraction gratings recall!!!
If you have previously ordered spectrograph sets in 2011,
please
check our information about a diffraction grating recall.
Gratings shipped after 1 November 2011 should be fine.
Please note that we are currently only able to ship to domestic US school addresses
The current shipping charge is $7.00 per classroom set of 45 posters plus diffraction gratings
We are currently experiencing a 4 month delay in our poster shipments for both current and future requests. Please be patient as we get this resolved
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