The present invention relates to a magnetic stimulation (MS) and preferably transcranial magnetic stimulation (TMS) coil arrangement designed for use as a placebo treatment. Accordingly, the purpose of the invention is to reduce or remove the effect of the magnetic field generated in use by a magnetic stimulation coil arrangement whilst the appearance presented remains as expected from a MS coil arrangement. The invention comprises a radially wound conductive element having a plurality of turns forming at least one winding. There is further provided at least one conductive magnetic field disrupting element at least partially positioned adjacent to the at least one winding for disrupting a magnetic field generated in operation by the at least one winding. The conductive magnetic field disruptive element accordingly attenuates the generated magnetic field beneath the coil arrangement.