This EASY to use genuine JSP and GTE 14K Gold and Silver Jewelry test kit will determine the karat value and purity of Gold and Silver Jewelry, scrap, bars, coins, and much more! Simply scratch the test stone with your jewelry, apply a drop of the acid to the scratch mark on the stone, and watch the results appear! This testing kit is FUN, FAST, and ACCURATE! This 5 piece kit includes: ( Valued at $30! BUNDLE AND SAVE $$ ) - JSP 14K Gold Testing Acid Solution 0.5 oz. (14 g) - JSP Silver Testing Acid Solution 0.5 oz. (14 g) - GTE Acid Neutralizer Solution 0.5 oz. (14 g) - (1) 2''x4'' GTE Test Stone with rubber backing for non-slip desktop testing (Reusable up to 1000 tests!) - Easy to read and follow instruction booklet!