This is for 1 used OEM 922-9550 Apple Top Case Keyboard. This is a used part, however it does not have any cracks/chipping on the palm rest. It has been tested and is fully operational. It works on the following models of macbooks:

 

Macbook 13" Late 2007

 

Macbook 13" Early 2008

 

Macbook 13" Late 2008

 

Macbook 13" Early 2009

 

Macbook 13" Mid 2009