... shaped:ARC,Round,Block,Ring,etc 3.Grade:N35 to N52,M,H,SH,UH,EH,AH,etc 4.RoHS,SGS Sintered NdFeB magnet ... ,30SH-45SH,30UH-38UH and 30EH-35EH;4. Shape: ring,block,disc,bar and so on5. Size: according to customers' request ... , loudspeakers, magnetic hooks, magnetic holder, filters automobiles and so on . NdFeB Magnet