DUCATI BEVEL 750 ROUNDCASE ENGINE  MODELS ONLY -750SS/750 SPORT BEVEL TWINS FINEST UPGRADE  HAS INTERNAL MAGNET-SEEN ON THE HEXAGONAL PART  ON 3RD PICTURE   TO CATCH SWARF AND CONTAIN IT IN THE CIRCULAR PART SO CAN BE SRRIPPED AND SWARF REMOVED AT SERVICE VITAL UPGRADE ITEM TO SOLVE  THE VERY CRUDE FILTRATION SYSTEM AND SWARF CIRCULATING  ON THESE ENGINES -ALSO TO AVOID DISTORTED FILTER DUE TO HOT OIL AND TWISTED FILTER SYNDROME  NEVER USED  -PLEASE ASK ANY QUESTIONS BREFORE PURCHASE AS STRICTLY NO RETURNS POSTAGE £5.00-EUROPE £10-AMERICAS £11-REST OF WORLD £22