Applied Magnets 4" x 1" x 1" Neodymium Block Magnet N42 Top Quality Neodymium Iron Boron (NDFeB) Rare Earth Magnets Super strong and powerful magnet, much stronger than ceramic magnets! Pull Force: 200 lbs, Great performance, Wholesale Price 4" long x 1" wide x 1" thick, magnetized through thickness, poles on the 4"x1" flat surfaces Grade N42, stronger than N40. Quantity: 1 magnet per package