N52 Rare Earth Ball Magnets: 7.5mm Neodymium Spheres

The N52 Rare Earth Ball Magnets: 7.5mm Neodymium Spheres (SKU MAGNET-BALL-7.5mm) are small, high-power spherical magnets made for precision applications where magnetic force matters most.

What the specs mean in your hand

• 7.5mm diameter: less than a centimetre across, so each ball is easy to lose and easy to swallow.
• N52 grade: the top of the commonly available neodymium grades. Expect a stronger pull for the size than N35 or N42 magnets.
• Neodymium, a rare earth material: the usual choice when a compact magnet has to do a lot of work.
• Spherical shape: a ball touches a surface at a single point and can roll or rotate. It suits precision use better than flat-face holding.

What else you need

Nothing electrical. There is no power, cabling or recorder involved. You do need a safe way to store and handle them, because magnets this strong pull together fast.

Handling

• Keep them away from young children. Small magnets can cause serious harm if swallowed.
• Separate balls slowly. Fingers can be pinched between them.
• Keep them clear of pacemakers, bank cards and hard drives.