Neodymium Block Magnet 15 x 15 x 3 mm N35
 
Neodymium (NdFeB) is among the strongest magnetic materials and provides substantial holding force for its size. Its magnetic attraction is greater than that of ferrite magnets, and the surface coating helps reduce corrosion. N35 indicates the magnetic grade. The usual range is N35 to N52, with higher numbers generally indicating greater magnetic attraction. The block shape is easy to position, provides a large contact area on flat surfaces and fits readily into a variety of holders.
 
The 15×15×3 mm size provides a strong hold for practical tasks, including quick assemblies, attachments and technical projects. Even a small gap caused by paint, tape or clearance noticeably reduces magnetic attraction. It performs best on solid steel.
 
Warning: keep out of reach of children. Magnets can snap together suddenly, pinch skin and chip or break on impact. Handle them carefully when bringing them together or separating them. Keep them away from medical devices and objects sensitive to magnetic fields, including cards and electronics.