25pcs N52 12mm X 2mm Strong Round Magnets Rare Earth Neodymium Magnets. Description: 25pcs N52 12mm X 2mm Strong Round Magnets Rare Earth Neodymium Magnets  	 	Specification:  	Shape: Round  	Grade: N52  	Material : NdFeB magnetic  	Size: 2mm X 12mm  	Quantity: 25pcs 	 	Feature: 	 		Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the…