PRODUCT DETAILS This EASY to use genuine JSP kit will determine the karat value and purity of Gold Jewelry, scrap, bars, coins, and much more! Simply scratch the test stone with your jewelry and apply a drop of the acid to the stone and watch the results appear! *NOTE* Stone sold separately. *Our goal is to make testing your jewelry FUN, FAST, and EASY! *We promise that our acids are guaranteed to be FRESH! *Each bottle will test hundreds of times! *These small bottles are perfect for traveling with or carrying in a purse or briefcase. Quick easy to use; instructions included. *A MUST-HAVE for anyone who invests in gold! This 3 Piece kit includes: - JSP 10K Gold Testing Acid Solution 0.5 oz. - JSP 18K Testing Acid Solution 0.5 oz. - Easy to read and follow instructions! If you have any further questions, please feel free to contact us. We look forward to serving you in the future.