This Neodymium Rare Earth Magnet is an essential tool for anyone looking to test scrap Gold. Measuring at -10mm, this great kit comes with a very strong magnet that can easily distinguish between genuine Gold and other metals that may be used to deceive buyers. The material of the magnet is a high-quality Neodymium, ensuring its strength and durability. This magnet is also suitable for use with Silver, making it a versatile tool for anyone in the jewellery industry. Whether you're a professional jeweller or an avid collector, this Neodymium Rare Earth Magnet is a must-have for your collection. So, don't miss out and get your hands on this amazing kit today!