This set comprises two keychain magnets manufactured with neodymium rare earth elements, finished in a black coating for a professional appearance. Each unit serves as both a key holder and a metal testing instrument, suitable for assessing brass, gold, silver and other precious metals. The magnets also detect ferrous metals, providing users with a reliable method for material identification. The compact pocket-friendly design ensures the set can be carried without adding unnecessary bulk to personal belongings. The black finish offers a neutral aesthetic that complements various key styles and accessories. These keychains are constructed to withstand regular handling and everyday use. The dual functionality makes them a practical addition to any key set, whether for personal use, hobbyist activities, or professional environments where metal verification is occasionally required.
