Cosyhome Gold Practical Acid Testing Water Portable Jewelry True Detecting Tool

CosyHome

Practical Acid Testing Water Portable Jewelry True Gold Detecting Tool.Features: 1. This product is used to verify metal products that contain gold in the item. 2. Apply a drop of this solution to the small sample to be tested, the real gold will stay on the litmus test stone and the fake will be dissolved or oxidized to blue. 3. This solution is suitable for testing any metal product that you think is 10K, 14K, 18K, 22-24K whether it contains gold or not. 4. Very easy to use, instructions i