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When you place your hand around the large glass bulb on the bottom of the Hand Boiler, you'll see the colourful liquid shoot up.
This is a classic science toy that was once referred to as a "love meter" to determine if someone was hot or not. Today, it's a beautiful piece of scientific apparatus that is sure to be a favourite on your desk or shelf. Caution: Made of glass. Recommended for ages 8 & up (with adult supervision) Assorted colours.
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