An interesting scientific object.
When you hold the lower part of the glass tube the liquid shoots up to the upper portion and seemingly boils. Hold the top section and liquid returns to the lower element. Due to the glass construction, this is not intended as a toy.Please note: As this item is an assortment we cannot guarantee a specific style, please let us choose on your behalf or state your preference in the comments section and we will do our best.
When you hold the lower part of the glass tube the liquid shoots up to the upper portion and seemingly boils. Hold the top section and liquid returns to the lower element. Due to the glass construction, this is not intended as a toy.Please note: As this item is an assortment we cannot guarantee a specific style, please let us choose on your behalf or state your preference in the comments section and we will do our best.
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