Quick and easy to use
Each bottle has 1/2 fl oz of acid.
More then 100 tests per bottle
 
Simply apply a drop to test stone (buy here) or on a portion of the jewellery that has been sufficiently filed to reveal the base metal. Clear and fast results!
 
MUST-HAVE for bullion investors, detectorists, gold buyers, or gold enthusiasts!
 
Please, use with caution!