Applied Magnets Neodymium Magnet 2-Inch OD x 1-Inch ID x 1/4&ndash;Inch Ring 1 Piece - Made with the Strongest Magnet - Neodymium Magnet. Offers much more holding power than any ceramic magnet. Magnet Grade N42 , stronger than N40, N38 and N35. Magnetized axially through the Thickness 0.25", poles on the flat surfaces. Approximate Pull Force: 50 lbs. Durable Nickel-Cpper-Nickel 3-layer Coated magnet.