12-16 Years Age Level, Spectrum Brand Toys Hobbies

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$3 x Diffraction Grating Slides 1000 / 500 /13,500 mm Educational Physics Optics$ Buy: $15.50 AUD

$3 PC Diffraction Grating Slide 500 / 1000 / 13,500 Line Optical Physics Science$ Buy: $15.50 AUD

$Diffraction Grating Slide Linear 1000 Line mm Spectrum Laser DIY Spectrometer$ Buy: $6.95 AUD

$Diffraction Grating Slide Double Axis 13,500 Line / Inch Spectrometer Science$ Buy: $6.95 AUD

$Diffraction Grating Slides Linear 500 Line/mm DIY Spectrometer Spectrum Analysis$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 lines mm Laser Spectrum DIY Spectrometer$ Buy: $6.95 AUD

$Double Axis Diffraction Grating Slide 13,500 Line/Inch Holographic Spectrometer$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 Line/mm Single DIY Spectrometer Laser DIY$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 500 Lines mm - DIY Double Slit Experiment$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 Line/mm Spectrum Laser DIY Spectrometer$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 Lines /mm Spectrum Laser DIY Spectrometer$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 Line Spectrum Rainbow DIY Spectrometer$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 500 Line/mm DIY Spectrometer Spectrum Analysis$ Buy: $6.95 AUD

$Diffraction Grating Slide Linear 1000 Lines mm Single DIY Spectrometer Laser$ Buy: $6.95 AUD