A PAIR [2] OF  CHROME PANCAKE AIR FILTERS. THEY ARE SUPPLIED WITH THE CORRECT  FITTING BOLTS AND GASKETS. THEY ARE A DIRECT REPLACEMENT TO DISPOSE OF THE RUSTY OLD TRIUMPH OR MG  AIR BOXES FITTED TO HS4 [ 1.50 INCH ] CARBS ON TRIUMPH SPITFIRE 1500, MG MIDGET 1500 & MGB [ HS4 & HIF4 ] . WILL ALSO FIT MGA  AND OTHER HS4 SU APPLICATIONS . PLEASE ADVISE CAR / MODEL / YEAR WHEN ORERING .  PLEASE  CONTACT US IF YOU NEED HELP WITH THIS .