Used By Professionals For Ages, This Gold Testing Acid Will Allow You To Test The Purity Of Your Gold Items. It Is Intended For Use With A Gold Testing Stone (sold Separately). This Acid Is Formula Gt48, Which Is For Testing 18k Gold, And It Comes In A Package Of 12 Plastic Bottles. Each Bottle Is 1/2 Oz.

* Formula #gt48 For 18k to properly identify gold content in your jewelry

* 12 Pc. Plastic Dropper Bottles, plenty to last a long time

* Each Bottle Is 1/2oz, with protective cap for safety

* For Use With Testing Stone (not Included)

* Professional Quality - this is acid- not a toy- use with extreme caution