... alnico magnet 1.Sizes and shapes:according to your details. 2.Grade:N35,N38,N42,N50,N52,N35H... Education magnets/alnico magnet ... Material:Alnico1,Alnico2,Alnico3,Alnico5 (U.S.A Standard)Alnico120,Alnico160,Alnico500 ... (Germany Standard)Features:Alnico (Aluminum-Nickel-Cobalt) ...