Nigel`s Eco Store Water-powered calculator (8-digit)

One of the most unique water powered products on the market. To power this pocket caluclator you ju

Nigel`s Eco Store Water-powered calculator (8-digit)

One of the most unique water powered products on the market. To power this pocket caluclator you just add water to the removable water battery in the back - no need for batteries ever again.

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