This EASY to use genuine JSP & GTE test 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, apply a drop of the solution to the scratch mark on the stone, and watch the results appear! Our solutions are guaranteed to be FRESH! This testing kit is FUN, FAST, and ACCURATE! This 8 piece kit includes: ( Valued at $35! BUNDLE AND SAVE $$ ) - JSP 10K Gold Testing Solution 0.5 oz. (14 g) - JSP 14K Gold Testing Solution 0.5 oz. (14 g) - JSP 18K Gold Testing Solution 0.5 oz. (14 g) - JSP 22K Gold Testing Solution 0.5 oz. (14 g) - JSP Silver Testing Solution 0.5 oz. (14 g) - GTE Neutralizer Solution (used to clean stone in between uses) - GTE 2''x4'' Test Stone with rubber backing for non-slip desktop testing (Reusable up to 100 tests! Clean with baking soda/water mix in between uses) We look forward to serving you in the future. 1 YEAR GUARANTEE ON ALL PRODUCTS! These solutions/acids last up to 1 year after opening if stored in a cool and dark place. Easy to read and follow instruction booklet!