Neodymium Ring Magnet 30 x 5.5 x 3 mm N35 Diametrically Magnetised
 
An NdFeB (neodymium) ring magnet provides high magnetic attraction for its size and fits readily into various holders and components. It is much stronger than conventional ferrite magnets and generally has a protective coating because the material can corrode over time. N35 indicates the magnetic grade. NdFeB grades commonly range from N35 to N52. diametric magnetic orientation: magnetised radially rather than through the thickness, which is useful in certain technical applications.
 
A good choice where stronger holding force and a radial magnetic field are required. (Ø30/Ø5.5×3 mm) Popular in technical projects involving rotating components, sensors and positioning on shafts where a radial field is needed. Holding force depends strongly on the thickness and condition of the metal surface. It is greater on thick steel and weaker on thin sheet metal.
 
Warning: keep out of reach of children. Swallowing magnets poses a serious risk and requires immediate medical attention. Magnetic attraction is strong. Bring magnets together and separate them carefully to avoid pinching injuries and chipping. Keep them away from bank cards, sensitive electronics and medical devices such as pacemakers.