These Neodymium Iron Boron magnet have a gauss level which is
typically 2 - 4 times higher than standard Alnico magnets. They
are nickel-plated for improved corrosion resistance and appearance.
These Neodymium Iron Boron magnets are 6mm in diameter.
These small magnets can be secured to the underside of most Scalextric
cars. These magnets may be small but they are more than powerful
enough to significantly improve track performance.