A delivery system for delivery and deployment of a self expanding stent at a desired vascular location of a patient, the system comprising: a self expanding stent, the stent having a proximal end and a distal end; a catheter shaft having a proximal end and a distal end, the distal end of the shaft defining a reception space for receiving the stent, the stent having a reduced diameter delivery configuration, the catheter shaft comprising a distal sheath portion and a proximal shaft portion, the diameter of the proximal shaft portion being smaller than the diameter of the distal sheath portion and the distal sheath portion defining the reception space for the stent; an inner core having a proximal end and a distal end and a length, the stent being disposable about the distal end of the inner core; an outer core having a proximal end and a distal end and a length, the outer core being disposed radially about and affixed to the inner core, wherein the length of the outer core is less than the length of the inner core, the distal end of the outer core having an abutment which is engagable with the proximal end of the stent to deploy the stent; an operator handle, for movement of the catheter shaft relative to the inner core and the outer core to deploy the self expanding stent; a stabiliser component comprising a tube having a distal end and a proximal end characterised by; the distal end of the stabiliser tube being disposed proximally to the stent; the inner core and the outer core being fixed to the stabiliser tube; the stabiliser tube being disposed over the smaller diameter proximal shaft and wherein the diameter of the stabiliser tube is not greater than the diameter of the distal sheath of the catheter shaft. a self expanding stent, the stent having a proximal end and a distal end; a catheter shaft having a proximal end and a distal end, the distal end of the shaft defining a reception space for receiving the stent, the stent having a reduced diameter delivery configuration, the catheter shaft comprising a distal sheath portion and a proximal shaft portion, the diameter of the proximal shaft portion being smaller than the diameter of the distal sheath portion and the distal sheath portion defining the reception space for the stent; an inner core having a proximal end and a distal end and a length, the stent being disposable about the distal end of the inner core; an outer core having a proximal end and a distal end and a length, the outer core being disposed radially about and affixed to the inner core, wherein the length of the outer core is less than the length of the inner core, the distal end of the outer core having an abutment which is engagable with the proximal end of the stent to deploy the stent; an operator handle, for movement of the catheter shaft relative to the inner core and the outer core to deploy the self expanding stent; a stabiliser component comprising a tube having a distal end and a proximal end characterised by; the distal end of the stabiliser tube being disposed proximally to the stent; the inner core and the outer core being fixed to the stabiliser tube; the stabiliser tube being disposed over the smaller diameter proximal shaft and wherein the diameter of the stabiliser tube is not greater than the diameter of the distal sheath of the catheter shaft.