An N52 Grade Neodymium Rare-Earth Magnet is the most powerful type of Magnet available today!
1 Magnet is capable of lifting a 4ft Steel Scaffold Tube, and two Magnets can lift an 8ft! They’re pretty powerful for their size!
When fitting two Magnets into your Firefly Level, please make sure you hold them very tightly, because the Pull strength will whip it out of your grasp and smash onto the other Magnet, and the impact WILL shatter the loose Magnet completely! The edges of a shattered Magnet are razor sharp too, so be careful, a shard can easily be pulled through your finger or thumb like a knife by the power of the other Magnet. I cannot stress this enough as I have the injuries to prove it myself!