Description:_x000D_<br> - 【Special Function】: Gold Testing Kit is used to verify the gold content in items, suitable for testing anything is 10K, 14K, 18K, 22- and gold._x000D_<br> - 【Testing Method】: jewelry gold tester, drop a drop of test on the stone, real gold will stay on the stone, fake gold will dissolve or oxidize to blue._x000D_<br> - 【Easy to Use】: jewelry tester appraisal kit, changes color according to , very easy to use._x000D_<br> - 【Wide Application】: gold detecting equipment, practical jewelry making accessories, great for testing jewelry, , antique gold, , collections, etc._x000D_<br> - 【Package Included】: gold inspection kit, containing 1 gold testing stone and 1 gold testing water (3ml)._x000D_<br>Size Chart:_x000D_<br>Test water: 3ml_x000D_<br>Test stone: 7.8cmx4.3cmx0.5cm/3.07inchx1.69inchx0.20inch_x000D_<br>_x000D_<br>Package Includes:_x000D_<br>1 Gold Testing Stone_x000D_<br>1 Gold Testing Water(3ml)_x000D_<br>_x000D_<br>Note:_x000D_<br>Please allow slightly errors due to manual measurement and different monitors.