GOLD TESTING
Gold testing needles are used to determine the karat content of your gold.
Rub a needle and the item to be tested on your test stone, then treat with your gold testing acid solution to determine match.
Set consists of five gold testing needles for 4k, 6k, 8k, 10k, 12k, 14k, 16k, 18k & 20k gold testing
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