Very easy to use and includes instructions. Sealed box contains five (5) bottles test solution; each bottle contains 1/2 fluid oz (0.5 fl oz) test acid. You will receive one 10k solution, one 14k solution, one 18k solution, one 22k solution, and one Silver solution--each new in box sealed with shrink-wrap. Test stones are brand new, and will last many uses; extra large stone measures 6 inches x 3 in.; the standard size (small) stones are 2in x 2 in. PuriTEST 30x magnifying glass eye loupes are made with high-quality optical glass, double lenses; 21mm lens diameter. DigiWeigh 100AS enables you to choose from four (4) separate weighing modes: Grams (g), Ounces (oz), Carats (ct), Grains (gr/gn). Scale Capacity/Accuracy: 100/0.01 g, 3.527/0.0005 oz, 500/0.05 ct, 1542.8/0.2 gr. Scale includes manufacturers Lifetime Warranty. Enables you to test samples at home or on the go Each PuriTEST box contains five (5) half-ounce bottles of test acids- 10k, 14k, 18k, 22k and Silver testing solutions DigiWeigh DW100AS electronic jewelry scale with batteries, calibration weight, and Lifetime Warranty Genuine PuriTEST 30x magnifying loupe with case, and 2 test stones (one extra large, one small/standard) Ideal for anyone who enjoys mining or panning for gold, or even the scrap jewelry trade, coins bullion, and more