Neodymium Disc Magnet 16 x 3 mm N35
 
Neodymium (NdFeB) is among the strongest magnetic materials, even in small sizes, and its stability makes it useful for many practical applications. It is noticeably stronger than conventional ferrite magnets and generally has a protective coating because the material is prone to corrosion. N35 indicates the magnetic grade; NdFeB grades commonly range from N35 to N52, with higher numbers generally indicating stronger magnets.
 
The Ø16 × 3 mm size provides a strong, stable hold for workpiece holding, workshop organisation and everyday practical applications. For good results, use a clean metal surface that is as thick as possible. Any gap caused by thick paint or an uneven surface reduces holding force.
 
Warning: not suitable for children. Strong magnets can snap together suddenly, causing pinching injuries, and may break. Bring them together and separate them carefully. Keep them away from bank cards, sensitive electronics and medical devices.