Reviewed by more than 42 consumers, more than 100% of the reviews about this JSP hardness testing equipment had positive sentiment, meaning that these customers would probably advise purchasing this product when asked about a recommended hardness testing equipment.
$19.98 (as of 12/10/2019 05:14 PDT details )Features:
- Reliable means to test gold you believe to be 14K pure
- Acid changes color to indicate purity
- Each bottle contains one half ounce 0.5 oz 15ml of solution
- Enables you to test BEFORE YOU BUY from flea markets, auctions, stores, et c
- Ships to you fast