This item does not work on all kinds of silver and gold. A few types of silver and a few types of gold do not work with our jewelry cleaner. If your jewelry does not work with this cleaner, it does not mean it is defective, but it just means that it will not work on this specific type of jewelry, but there is no guarantee that this cleaner will work on fake jewelry. Maui Jewelry Liquid Cleaner Solution is a safe solution that revives your jewelry. The jewelry cleaner safely cleans silver jewelry, gold, and diamonds. Size: 4.8 OZ or 142 ML. Use: The liquid jewelry cleaner comes with a basket and a brush. Drop the jewelry in the basket and let it sit for 5 to 10 minutes before you remove it. Use the brush for extra cleaning. The jewelry will shine again. A money-back guarantee, a 100% refund if you are not satisfied. SKU - INSTOCK