Features: This jewelry testing tool combines a keychain magnet tester, allowing users to assess the authenticity of gold, silver, and other metals in coins or pendants. Featuring a portable jewelry test tool with integrated weights, this equipment enables quick material detection during trade, daily wear, or investment verification, ensuring reliability anywhere. Features -Color:Silver -Material:Iron, magnet -Size:5.80X1.80X1.80cm/2.28X0.71X0.71in -Accurate material testing: this jewelry testing tool uses advanced magnet tester for gold and silver, ensuring precise detection of authenticity for various jewelry pieces, coins, and pendants -Convenient keychain design: featuring a portable keychain magnet tester, it's easy to carry and ready for quick jewelry testing anywhere, making it perfect for everyday wear or trade situations -Included calibration weight: the kit comes with a calibration weight for the jewelry test magnet keychain, enhancing accuracy and reliability in every test for both professionals and hobbyists -Multipurpose functionality: more than just a gold tester tool, this jewelry metal tester kit is suitable for testing multiple metal products, expanding its value and practicality for diverse uses -Elegant & functional: stylish magnetic key holder combines aesthetic appeal with utility, serving both as a fashionable accessory and a high performance magnet for jewelry testing at any event Package list: 4 x jewelry tester