This item is a used front trim liner front passenger door panel complete gray (Leather portion wrinkled) for a 1999 Acura RL.
The part numbers are 83520-SZ3-A21ZB and 83520SZ3A21ZB.
This OEM Genuine Acura part
sells for $40
and comes with a warranty.
Please note, this is an interior door panel, not an actual car door!