Test Stone - Glass w/non Slip Grip - 6” x 3”
New economy black”glass” testing stone for use with solutions and test needles to determine the karat value of articles to be tested. 6” x 3” size offers value and convenience with a non-slip back for secure use.
- Ideal for testing karat value
- Made in Mexico
- Includes a non-slip back for secure use
- 6” by 3”
- For use with solutions and test needles