Andersen Perma-Shield Metal Gliding Door Strike and Liner for 2 Panel Door.
The Plastic Liner is for the 2 panel doors to stop Air flow through the jamb.

Plate Length: 4 Inch
Plate Screw Center: 3-3/8 Inch
Plate Width: 1 Inch
Liner Length: 2-1/2 Inch
Liner Width: 13/16 Inch
Liner Height: 9/16 Inch

Priced and Sold as Set.

Related Andersen Door Parts:
2565502 - Large Strike Plate only
2565503 - Liner Only