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Product description ------------------- 1.RARE-EARTH MAGNETS. Neodymium magnets are a member of the Rare-Earth magnet family and are the most powerful permanent magnets in the world. 2.HIGHEST NEODYMIUM GRADE (N52). Neodymium magnets are all graded by the material they are made of. The higher the grade (the number following the 'N'), the stronger the magnet. The highest grade of neodymium magnet currently available is N52. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. 3.TRIPLE PLATED.Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated. There are a variety of options for coatings, but nickel is the most common and usually preferred. Our magnets are triple plated with layers of nickel, copper, and nickel again. This triple coating makes our magnets much more durable than the more common single nickel plated magnets. 4.DEMAGNETIZATION. Rare Earth magnets have a high resistance to demagnetization, unlike most other types of magnets. They will not lose their magnetization around other magnets or if dropped. They will however, begin to lose strength if they are heated above their maximum operating temperature, which is 176°F (80°C) and will completely lose their magnetization if heated above their Curie temperature which is 590°F (310°C) for standard N grades. 5. STRENGTH. If you've never handled neodymium magnets before, you will be amazed at their strength. Neodymium magnets are over 10x stronger than the strongest ceramic magnets. If you are currently using ceramic magnets in your project, you could probably use a much smaller neodymium magnet and have greater holding force. Safety Warning -------------- Powerful magnets can hurt your fingers. Use caution when removing magnets from each other to avoid breaking and hurting yourself. Keep away from electronics, children under 10 years old, and those with pacemakers.