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!
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4mmx2mm Super Strong Round Neodymium Magnet Powerful Magnets N35 small Permanent Magnetic NdfeB Refrigerator Magnet 4x2
Aliexpress UK
Neodymium magnets are an alloy of neodymium iron and boron. They have very high energy and are more powerful for their size than any other magnet material. You will find them in many industrial and household products and are ideal for crafting.
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6x10mm Super Strong Neodymium Magnet N35 NdfeB Permanent Magnetic imanes Round Powerful Magnets Refrigerator Magnet
Aliexpress UK
Very Strong 20mm x 3mm x 5mm Hole Countersunk Disc N42 Neodymium Magnets. N numbers range from N27 - N52. 3mm with 5mm countersunk hole. Neodymium is about as common as tin or lead. Neodymium Magnets.
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20x10x3mm Super Strong Magnet N35 Block Magnetic NdFeB Neodymium Magnet Powerful Disc imanes Refrigerator Magnets
Aliexpress UK
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3x1mm Super Strong Neodymium Magnet N35 NdfeB Permanent Magnetic imanes Round Powerful Magnets Refrigerator Magnet
Aliexpress UK
These magnets provide the strongest magnetic force for their size. Strong Neodymium Magnets - 2mm to 30mm Round Disc Magnets - N52 Grade. Choose from a variety of sizes, from small 2mm discs for crafting and DIY projects to larger 30mm discs for more demanding tasks.
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Super Strong Neodymium Magnet N35 NdfeB Permanent Magnetic imanes Block With Holes Powerful Magnet Refrigerator Magnet 20x10x3-4
Aliexpress UK
When magnetising two Neodymium magnets together, safely slide magnets together to avoid high impacts. These magnets are incredibly strong and never fail to impress. The magnets are coated in four layers of Nickel, Copper and Boron to enhance the lifespan of the magnet and the coating also provides a smooth finish.
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Super Strong Round Neodymium Magnet Powerful with holes Magnets N35 Permanent Magnetic NdfeB Refrigerator Magnet 20x3-5 25x3-5mm
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!
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8x2mm Super Strong Neodymium Magnet N35 NdfeB Permanent Magnetic imanes Round Powerful Magnets Refrigerator Magnet
Aliexpress UK
Samarium Cobalt. N52 is the highest grade which is currently widely and reliably available. Neodymium N52 - High Grade. Grade: N52. Neodymium Blocks. Neodymium Disks / Rods. Neodymium Cubes. Neodymium Rings.
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2x2mm Super Strong Round Neodymium Magnet Powerful Magnets N35 small Permanent Magnetic NdfeB Refrigerator Magnet 2x2
Aliexpress UK