Make a clock that can work just on tap water! You will never need batteries again. Also works on a variety of household materials such : cola, fruit juice and even ketchup! Try other materials and see how the clock never stops. This is the best timekeeper you will ever have.
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
Shipping: Please allow 2-3 days to process the order
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