Rigid., PVC sheath., Brown & blue PVC insulation., BASEC approved (British Approvals Service for Cables)., BS6004, Flat for Easy Installation in Plaster, Conductor Area: 4mmsquared, 50m Reel, Insulated & Sheathed, 7 strands per core., 25A rating., -15degrees C to 70degrees C., 50m cable & reel.