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Magnetizing an unmagnetized speedcube yourself means buying the same small N52 discs cube makers use at the factory: 3mm diameter by 2mm thick is the size that fits standard corner and edge wells on GAN, MoYu, QiYi and YJ cubes. This is a narrow, commodity-hardware category — a handful of specialist magnet sellers carry the right spec rather than dozens of consumer brands — so below are the real, correctly-sized options rather than padding the list with magnets too big to fit a 3×3 piece.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | UMAGNETS 3mm x 2mm N52 Neodymium Disc Magnets (50-Pack) | $5-$6 for 50 | Amazon · eBay |
| 2 | Apex Magnets 3mm x 2mm N52 Neodymium Disc (50-Pack) | $9 for 50, down to about $6.30 each at 500+ | Amazon · eBay |
| 3 | JC-Magnetics 3mm x 2mm N52 Magnet Disc (100-piece minimum) | about $16 for 100, down to $0.07/magnet in bulk | Amazon · eBay |
| 4 | Bulk N52 3x2mm Neodymium Disc Magnets (Amazon marketplace, 100-500 pcs) | roughly $7-$15 per 100-pack | Amazon · eBay |
| 5 | totalElement 1/8″ (3.2mm) Small Cube N52 Magnets (216-Pack) | $23.49 for 216 | Amazon |
The picks, in detail
UMAGNETS 3mm x 2mm N52 Neodymium Disc Magnets (50-Pack)
The exact spec used inside factory-magnetized speedcubes, sold loose so you can retrofit an unmagnetized cube.
- N52 grade, the strongest commercially available neodymium
- 3mm x 2mm disc fits standard corner/edge magnet wells
- Nickel-copper-nickel coating resists corrosion from hand oils
- 50-pack covers one full 3×3 magnetizing job
- Correct size for drop-in cube modding, no cutting needed
- Small specialist retailer, consistent quality
- 50 pieces is only enough for one cube’s worth of wells
- Still need glue or tape to seat the discs
Apex Magnets 3mm x 2mm N52 Neodymium Disc (50-Pack)
Same industry-standard cube-modding size from a longer-established US magnet supplier, with steep bulk discounts if you’re modding more than one cube.
- 3mm x 2mm N52 disc, identical spec to factory speedcube magnets
- Volume pricing cuts per-unit cost as quantity rises
- Sold directly by a dedicated magnet company
- Bulk pricing makes modding several cubes affordable
- Consistent pull force magnet to magnet
- Priced above the cheapest generic bulk listings
- No jig or applicator tool included
JC-Magnetics 3mm x 2mm N52 Magnet Disc (100-piece minimum)
The lowest per-magnet cost of the specialist suppliers once you buy in bulk, aimed at hobbyists modding multiple puzzles.
- N52 grade 3x2mm disc, sold by quantity rather than fixed packs
- 100-piece minimum order
- Per-unit price drops to $0.07-0.08 at 1,000+ pieces
- Cheapest per-magnet cost for modding several cubes or big cubes (5×5+)
- Flexible order quantities
- 100-piece minimum is overkill for a single 3×3
- No retail packaging
Bulk N52 3x2mm Neodymium Disc Magnets (Amazon marketplace, 100-500 pcs)
The same 3x2mm N52 spec sold directly on Amazon in bulk bags — the option if you want fast Prime shipping over a specialty magnet shop.
- 3x2mm N52 disc, the standard speedcube magnet size
- Sold in 100 to 2000-piece bags depending on listing
- Nickel-plated finish typical across these listings
- Prime shipping and easy returns
- Cheapest way to buy just enough for one cube
- Quality control varies more between marketplace sellers than dedicated magnet shops
- No technical support if a batch under-performs
totalElement 1/8″ (3.2mm) Small Cube N52 Magnets (216-Pack)
A square-cube-shaped alternative for the minority of cube pieces with square rather than round magnet wells — check your specific cube before choosing this over a disc.
- 3.2mm cube (not disc) shape, N52 grade
- 216-piece pack covers several full mods
- Sized for the smaller square wells some brands use
- Large pack covers multiple cubes
- Cube shape matches square-well pieces where a round disc would rock loose
- Wrong shape for the far more common round-well cubes — verify your model first
- Higher unit price than round 3x2mm discs
Buying tips
- Check whether your cube’s magnet wells are round or square before ordering — a disc that doesn’t seat flush will make the cube feel gritty.
- 3mm x 2mm N52 is the size factory-magnetized GAN/MoYu/QiYi cubes actually use; going bigger won’t fit and going weaker (N42/N45) gives a mushier magnetic feel.
- Use a dab of cyanoacrylate (super glue) rather than epoxy so a bad magnet can be pried out and replaced later.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.