1g 9999 Gold bar

1g pure 99,99% Gold bar
can be used as gold electrodes for colloidal gold.
Attention. Pictures show 0.5g bars, but we send 1g bars.
see film how to use them.
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Consider to buy the pressed gold bars. They have 4x bigger surface and produce about 2x faster.
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Attention: price for one piece
normally you need 2 for electrolysis.