Neodymium magnets, 3mm diameter, approximately 1mm height, set of 100, circular. These are small magnets that can be inserted into 3mm holes, commonly used in Gunpla, 30MM, 30MS, Megami Device, and Frame Arms Girl models. They seem convenient for concealing connection points and modifying pin-cut joints by embedding them with adhesive. Currently, they are often used for modifying the attachment and detachment of the Gundam Aerial's "Gunbit" weapons. They are useful for stabilizing weapons held by plastic models, fixing the position of telescopic parts, opening and closing car model doors, and preventing action figures from tipping over by embedding them in the soles of their feet. These are not high-quality magnets from companies like HiQ Parts, so they may not be exactly 3mm, and there may be some variation in fit. Because they are small and thin, they cannot support very heavy objects, but you can increase the magnetic force by stacking them. They are not the size and thinness you can find at 100-yen shops. Besides modifying plastic models, they can be used for temporarily securing paper and memos, crafting handmade items, making magnetic earrings, and many other applications that take advantage of their small size. Other quantity sets and 2mm sizes are also available, with lower unit prices for larger quantities. Target age: 14 years and older. Please be careful with handling and storage to prevent accidental ingestion by small children.