Neodymium magnets are brittle in any form. Arrived in perfect condition, no chips, no cracks. SEPARATE them, don't tear them apart. I had no problems. After playing around with it and doing my experiments, there weren't any minor chipped edges, which is to be expected. They are tiny but very durable and can be dangerous in the hands of children. I counted them, I counted one, put it on the table, and when I pulled the next one out of the stack to count, the one (or the one) I had already counted lifted or flew off the table, depending on which way . The one just counted was held and they were 12 to 15 inches apart! These are very strong little magnets. I installed the entire stack on my desktop about 18 inches from my computer monitor and noticed some discoloration on part of my screen and it was a HD screened monitor. The discoloration disappeared as soon as I moved the magnet stack. No harm, but beware! did i mention These are SMALL MAGNETS AND VERY STRONG! The photo is attached - a magnet for an American penny, the magnet is slightly thicker than a penny.
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