D90x20mm big disc neodymium magnets

The big neodymium discs on the pictures are made from the highest grade-N52. This grade gives the big neodymium discs the extreme magnetic force.With so big size and so high grade,the big neodymium discs can be called magnet tiger.It's very dangerous to handle so big neodymium discs,we make single package for each of the disc neodymium magnets.