A SET OF 6 PISTON RINGS AT +20 OVERSIZE FOR BSA A65 1962-72.THE SET COMPRISES 4 X TAPER COMPRESSION RINGS PART NUMBER 68-0358 AND 2 X OIL SCRAPER PART NUMBER 68-0260.THESE RINGS CAME OUT OF THE BSA FACTORY WHEN IT CLOSED IT'S DOORS IN THE EARLY 70'S;THEY ARE NOT BOXED AS THEY CAME IN BULK TUBES.