They have a high magnetic field strength and have a high coercivity (which makes them magnetically stable). Literally 1000s of uses. Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening.
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20-50 PCS Small Strong Neodymiumi Magnets Refrigerator Rare Earth Neodymium Magnet Disc Magnet for
Aliexpress UK
N35 is the industry standard grade. Neodymium disc magnets. Small & Tiny 2mm 3mm 4mm 5mm 6mm N35 N52 N55 rare earth. Samarium Cobalt. Neodymium N52 - High Grade. 5x0.5mm N52: 0.42lb / 7oz / 190g. 6x1mm N52: 0.99lb / 16oz / 450g.
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10-20 Pcs Super Strong Round Iman Magnet Powerful Neodymium Permanent NdFeB Magnet Disc Magnets
Aliexpress UK
25Kg (25000g). Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening. They are strong enough that they can fly into each other or to a piece of iron or steel with such velocity that they can break and send sharp 'shrapnel' flying about!
eBay
Super Powerful Magnet Strong Magnet Disc Magnet for for Fridge, DIY, Building, Scientific, Craft,
Aliexpress UK
N52 Neodymium disc magnets. High-Quality N52 Magnets – Sizes Ranging from 2mm to 40mm. Unmatched Strength with N52 Grade. With a maximum energy product of 52 MGOe, these magnets provide the highest level of magnetism, making them ideal for various applications requiring intense magnetic force.
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6x2mm Round Magnets, Mini Refrigerator Magnets Disc for Whiteboard Locker Fridge DIY Crafts
Aliexpress UK
BEST QUALITY MAGNETS BY MAGNET -N52 STRENGTH. High-Quality N52 Magnets – Sizes Ranging from 2mm to 40mm. With a maximum energy product of 52 MGOe, these magnets provide the highest level of magnetism, making them ideal for various applications requiring intense magnetic force.
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10~300pcs 5x10 mm Round Neodymium Magnets 5x10mm Mini Magnet Disc 5*10 mm Strong Cylinder Rare Earth
Aliexpress UK
Discover the ultimate in magnetic power with our N52 Neodymium Magnets. Renowned for their exceptional strength, these rare earth magnets are perfect for a variety of applications, including DIY projects, industrial uses, and creative hobbies.
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50~1000pcs 6x2 mm Mini Small circular Magnets Strong 6mmx2mm Fridge N35 Neodymium Magnet Disc 6x2mm
Aliexpress UK
Material: Neodymium magnets. Magnets Countersunk Various 20mm x 5mm Hobby DIY Industrial Magnet Strong 🧲. (The pull force was tested at 20 Celsius degree, on a polished iron plate with a thickness of 20 mm. ).
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20-1000pcs 8x3mm N35 Round Strong Powerful Magnets Fridge Magnetic Magnet Disc 8*3 for Craft Office
Aliexpress UK
Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening. They are strong enough that they can fly into each other or to a piece of iron or steel with such velocity that they can break and send sharp 'shrapnel' flying about!
eBay
6x2mm Strong Round Magnets, Mini Refrigerator Magnets Disc for Whiteboard Locker Fridge DIY Crafts
Aliexpress UK