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Feature

1 Dazzling Toys Astonishing Hand Boiler. Our hand boilers use thermodynamics to actually appear to boil. One hand boiler per order.
A classic science toy great for learning. Uses the heat from the hand of the user to boil liquid!
Each hand boiler measures: 6.25" h x 2" w.
It is made of glass. Keep away from little children.
Manufactured by Dazzling Toys.

Description

Our Dazzling Toys Astonishing Hand Boilers is a real fascinating science toy and an excellent demonstration of energy transfer. Available in 4 different colors - blue, green, red and purple. And 4 different designs. Just hold the large bulb end in the palm of your hand and within seconds, your body heat will cause the liquid to rise.