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Grade 5 and up. World's most powerful permanent magnet, many times the strength of ordinary or other rare-earth magnets. Made of 25% neodymium, 70% iron, and 5% boron. Round. Size, 1/2 x 1/4". Includes instruction sheet with suggested experiments.
WARNING: Neodymium magnets have a very strong magnetic field. Use with caution. Seek immediate medical attention if magnet is swallowed.
If for any reason you are not satisfied with this item, it is eligible for a return, exchange, refund, or credit up to 180 days from date of purchase. Restrictions may apply. Returns & Exchanges Policy.
