BMW 5 Series (E39) Outer Windshield Cowl Covers Part Number: 51718193201

The objects in your image are the Outer Windshield Cowl Covers for a BMW 5 Series (E39), manufactured between 1995 and 2003. These parts are often referred to as corner "reziaki" (rubbers) or water deflectors in automotive communities

Part Details
These components are sold as a pair for the driver and passenger sides:
Left (Driver) Side Part Number: 51718193201.
Right (Passenger) Side Part Number: 51718193202.

Function and Replacement
These covers seal the area where the windshield mee