New old stock seems like a cast iron rather than pressed steel like the new stuff Dimensions Outer dia 67 mm Inner dia 51 mm Thickness 27 mm Fitment :- EXHAUST PIPE SEAL RING 411951 FOR ROVER LAND ROVER TO FIT: ROVER 2000-3500 (1977 - 1982) LAND ROVER 90 (1985 - 1990) LAND ROVER 110/127 (1986 - 1990) LAND ROVER DISCOVERY (1989 - 1998) LAND ROVER RANGE ROVER (1985 - 1990) PART NUMBER: 411951 OEM PART NUMBERS: GEX7439 GEX7441 NTC1030
