Magnetic spheres, often called neodymium magnetic balls or Buckyballs, are small, spherical magnetic components typically made of high-grade neodymium (NdFeB) alloy—known for its exceptional magnetic strength. Most measure 3–5mm in diameter, with a nickel or gold plating to prevent corrosion and enhance durability. Their tiny size and strong magnetic force allow them to connect to one another in countless configurations, making them both a creative tool and a stress-relief accessory.

Common uses include educational exploration: they help demonstrate magnetic principles (like attraction, repulsion, and polarity) for students, turning abstract concepts into tangible experiments. For adults, they serve as desk toys—users can mold them into shapes like cubes, pyramids, or spheres, relieving stress while improving focus. In design, they assist in prototyping small structures or creating temporary magnetic displays (e.g., holding lightweight notes on metal surfaces).

However, safety is crucial: magnetic spheres are a choking hazard for children under 14, so they must be kept out of reach. Also, their strong magnetism can damage electronic devices (like smartphones or credit cards) if placed too close. Weight capacity varies by quantity—100 spheres can hold small objects (e.g., paperclips), while larger clusters support lightweight decor. With proper use, magnetic spheres blend fun, education, and functionality, appealing to both curious learners and stressed professionals.