An object of the present invention is to be able to obtain a high removing performance of particles. The magneto-resistive device includes a slider having first and second lower termination pads and first and second upper termination pads. It comprises a perforated substantially planar portion with fingers defined around the periphery thereof A plurality of first fingers are preformed to define abutments to abut against an outer surface of the wall and a plurality of second fingers are preformed to define sprung latches for latching within the aperture.