8K, 10K, 12K, 14K, and 18K Gold Testing Needle Set
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8K, 10K, 12K, 14K, and 18K Gold Testing Needle Set
Needles are used with testing stones and testing acid solutions in order to determine the contents of gold and other metals. Includes an 8K, 10K, 12K, 14K, and 18K, (5 total) stored on a convenient ring.