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As others have noted, this arrived broken. The return process for this item is rather difficult for such a small item (ie it must be picked up by ups at the address it was... Read morePublished 1 month ago by NYCmom
WARNING - CONTAINS HIGHLY TOXIC FLUID POISONOUS TO CHILDREN! Easy to break, we learned the hard way.
The fluid inside is a highly volatile carcinogenic petrochemical. Read more
This package arrived in perfect condition, it came in a good package that kept it safe. This is the second one I purchase from this seller and I haven't been disappointed at all. Read morePublished 14 months ago by Loading...
This is a good aid for demonstarting Charles' Law. The liquid-gas mixture inside is volatile with a boiling point just barely above room temperature (25 deg Celsius, 77 deg... Read morePublished 19 months ago by robert gonzalez