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Spectral Tube Group Physics Toy with 6 Gas Tubes

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Spectrum toys are fun to experiment with. You can light them up with a high voltage field or even a tesla coil. This Spectral Tube Group kit comes with 6 gas tubes and a convenient holder. You can light them up all the same time.

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These spectrum tubes are a bit shorter than your average 26cm tubes. You get Nitrogen, Argon, Helium, Neon, Hydrogen, and Hg tubes that turn into a rainbow of colors in the dark when excited.

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