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John
Reviewed in the United States on September 11, 2017
Grandchildren are having fun going through my element collection with a magnet, looking for things that stick. Cobalt has it's name, symbol and atomic number engraved on the end. The cylinders are difficult to display, as they roll around on the shelves of my of my display case. This turns the symbols and names upside down, I'll have to figure out something to do about this without using double-sided sticky tape.
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