Master Magnetics 0.315 In. Neodymium Disc Magnet, 10-Pack is a versatile and powerful magnet option designed to meet a variety of needs. Made from a blend of neodymium, iron, boron, and other transition elements, these magnets are permanent rare earth magnets known for their exceptional strength. As some of the strongest permanent magnets available today, they are i for industrial applications such as manufacturing motors, alternators, and actuators. Additionally, they are for creative projects, including crafts, school experiments, and DIY tasks. These neodymium disc magnets provide impressive pull force, making them suitable for light, medium, or heavy-duty projects that require reliable magnetic strength. Model Number: 07045