Neodymium Disc Magnet 10 x 1 mm N35
 
An NdFeB (neodymium) magnet provides high magnetic attraction for its size, making it useful for technical projects, DIY and quick attachments. It is noticeably stronger than conventional ferrite magnets and generally has a protective coating because the material is prone to corrosion. The N35 magnet belongs to the NdFeB family, commonly ranging from N35 to N52; a higher number generally means greater magnetic attraction.
 
The Ø10 × 1 mm size is suitable for DIY projects, small holders, catches and temporary attachments to steel. The metal material and thickness strongly affect performance. A thicker, flatter surface gives a better hold.
 
Warning: keep away from children. Two magnets can snap together quickly, pinch fingers and crack or chip. Use spacers for storage and take care when separating them. Keep them away from medical devices and objects sensitive to magnetic fields, including cards and electronics.