2445 x 4 Seat Wedges Set.  A full car set of Hard Wood Seat Wedges for setting the angle of the 2 seats correctly from the floor.  C.A.D. laser cut for consistent angle accuracy. Made from an expensive, hardwood for correct durability and long life. Original samples appear to be trimmed with Rexine ( a type of I.C.I leather-look vinyl) to suit the interior trim. Suits XK120,  XK140 & XK150 to raise the seat as it slides forwards and a tilt dynamically angle the legs for correct pedal operation (an automotive design trick that also technically shortens the overall leg room needed). May be retro-fitted to earlier cars that may not have had them as XK120 parts book lists a BD6113 Packing Pieces on floor for seats. Original References :   XK140 DHC lists Packing Assembly BD9606, XK140 FHC  Lists BD10912 Packing Assembly.

NOTE : See the second diagram for other seat fasteners and spacer plates etc.