The present invention describes an assembly of magnets to be coupled to oil filter case to attract ferrous material. Oil filter case [20] takes the shape of a cylinder. Magnet [22] has two poles and one of the poles is coupled to the side of oil filter case [20]. A steel member [24] is provided to couple only the other pole of the magnet [22] with the oil filter case [20]. The steel member [24] comprises a pivot unit [26] that couples the pole of magnet, a pivot extender [28] which couples the pivot unit [26] and a bridge [30] that couples the pivot extender [28] with oil filter case [20]. The magnet assembly directs the magnetic field from outward pole towards the oil filter to create a pseudo horse shoe magnet effect.