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🚚Shopping tips:PAY TODAY SHIP TOMORROW💙 1.【Cash on delivery】 All products on the shelves support cash on delivery; 2.【Delivery】 The product is in stock, and your order will be shipped from Valenzuela, Manila within 24 hours; 3.【Delivery】 NCR arrives in about 2 days, and other provinces arrive in 2-4 days; ★Features★ * 100% Brand New and High Quality! * This kit is used to verify the gold content in items! * Apply a drop of this solution to a small sample of the item to be tested onto the test stone. * Then the real gold will stay on the touchstone, false one will be dissolved or oxidized to blue * If the sample disappears, then the item is below the karat of the solution * This solution works for testing any gold which you believe to be 10K, 14K, 18K, 22-24K, Silver, and Platinum pure. * Acid changes color based on purity. Very easy to use, * Ideal for testing jewelry, coins, antique gold, silver, platinum collectibles, and more! ★Specifications★ Material: High purity Graphite Stone & Acid Testing Water Size: As picture show ★Package Included★ 1 * Gold Testing Stone + 1 * Gold Testing Waterd