1.shapes and sizes: Various such as block,disc,ring, ball, ... per your drawing 2.Grade:N35-N52,N35M-N50M,etc disk shaped magnets1.Material:rare earth ,neodymium 2.Shape:Block ,Ring ... ,Disk,customers3.Grade:N33-N52,N30M,N30H-N48H,N30SH-N45SH,N28UH- ...