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Piezoelectric Flash Rocks

Regular price $7.99

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Only 3 in stock

Just rub our Flash Rocks together to see a totally natural piezoelectric rock show! They'll glow internally and emit a distinctive odour!

Just place a rock in each hand, and forcefully rub the rocks together. To see the glowing electrical effect fully, you should do this in a darkened room. Also, note the distinctive odour given off by the frictions.

Made in the USA. Stone size varies.

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