-50% Colorful Office Thinking Mini Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 4 Pcs (Red&GreenBlue&Purple)

Colorful Office Thinking Mini Hand Boiler Glass Science Energy Transfer Children Science Experiment Love Birds Color Meter Hand Boiler 4 Pcs (Red&GreenBlue&Purple)

Hand Boilers are looped in the glass sculptures containing a liquid that will boil as heat is transferred from your bare hand. Simply hold the large bulb end on the bottom in the palm of your hand and within minutes your body heat from your hand...


Walmart

$39.99 $19.99
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