This is a very strong and popular size of flat, block magnet in grade N42. They WILL break if allowed to slam together, but they are very strong and useful for holding, hanging or joining things.
Glue these individually into your camo'd cache container to create a very unique hide! Two glued in the lid or base of a small 4 way locking container will hold it very firmly in place. Glue them stacked to achieve greater strength!
1. Does stacking magnets together make them stronger?
Yes, two or more magnets stacked together will behave exactly like a single magnet of the combined size!
2. Will magnets erase my hard drive or harm my computer?
No. While you probably don't want to stick magnets directly to your computer case, having them nearby will not harm your computer. Magnets can damage floppy disks and magnetic tape storage media, so you must keep magnets away from these items. They will not, however, damage any data on your hard drive. Every hard drive already contains a powerful neodymium magnet, so one moving around outside the case will not affect the data.