... , up to N52 Max working temp. 250 degree max Coating : Nicuni, Zn. Expoy ,colored Brand : YH Magnet Features:A) Optional shapes: Block, circle ... ° C, 200° CE ) Grade: Magnet N-( N35, N38, N40, N42, N45, N48, N50), Magnet M-(35M, 38M, 40M, 42M, 45M, 48M ... and their quality and durability are fully guranteed High Quality - Neodymium Magnets in any shapes