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
Due to the nature of all Neodymium magnets, it is possible for them to shatter when a large force is applied. This applies to all Neodymium magnets. 6mm x 3mm Disc Magnets. Perfect for sticking notes on fridge doors.Great for do-it-yourself projects.Ages: 7+ ages, both for kids and adults.Size: 5 x 2mm.
eBay
N52 Neodymium disc magnets. Small & Tiny 2mm 3mm 4mm 5mm 10mm 20mm rare earth. Due to the nature of all Neodymium magnets, it is possible for them to shatter when a large force is applied. This applies to all Neodymium magnets.
eBay
N numbers range from N27 - N52. Very Strong Mini 4mm x 1mm Disc N35 Neodymium Magnets. Neodymium is about as common as tin or lead. Neodymium Magnets. Never allow magnets to jump together or to jump to steel as they will likely shatter.
eBay
Neodymium Magnet N52 Extra Strong Magnets 12 X 16 Mm For Magnetic Board, Pegboard, Fridge, Cone Magnets, Music Magnets, Pin Board. Premium Quality: The surface of the magnets is triple coated. This protects the magnets from corrosion and extends their durability significantly.
eBay
Material: NdFeB N52. VERY Strong neodymium magnets. Max Pull : 5kg. Shape: Block. Max Vertical Hold : 1kg.
eBay
Strongest N52 Magnets | Rare Earth Magnets for Fridge, Whiteboard | 10 PCS | Super Strong Neodymium Magnets | High Power Magnets. Strongest N52 Magnets | Rare Earth Neodymium Magnets for Fridge, Whiteboard | 10 PCS | High Power Magnets.
eBay
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.
eBay