Children: Magnets are not toys. The magnets pose a risk of death to small children, who may swallow them.
Danger of crushing: Neodymium magnets are powerful magnets. You may bruise your skin if it is caught between the magnet and a metal object.
Working with the magnets: Neodymium magnets are very difficult to work and may break apart when machined.Magnets must not be soldered or welded. The NdFeB material is highly flammable.
Colliding magnets: Neodymium magnets may break if they collide or fall to the ground. The slivers of magnet normally have sharp edges.
Technical equipment: Powerful permanent magnets can damage technical equipment and storage media. People with pacemakers or a defibrillator are particularly at risk.
Allergies: Neodymium magnets are typically nickel-plated.
Heating: If neodymium magnets are heated above 80C, they lose their magnetic effect.
