They fit the classic Mini Mini Cooper MK4 onwards. It is the gasket that goes between the body of the lamp and the lens.
Classic Mini rear lens to light body foam seal gasket XFH100460 not handed mk4
CLASSIC MINI REAR CLEAR LIGHT LENS KIT INC OF BULBS
Classic Mini Rear Light Lens Screw Set MK4 Onwards XYP100310 lamp spi mpi cooper
37H4837 - CLASSIC MINI REAR LH LIGHT LENS GENUINE LUCAS 54580145 LKB114 L813
CLASSIC MINI REAR LOWER REPAIR CORNER BELOW REAR LIGHTS - LH / N/S 40-10-70-7
CLASSIC MINI REAR DRUM BRAKE BACK PLATE KIT BUILT UP R/H & L/H 21A1058 21A1060
