Air 2.0 front shocks

[1shooter]

I have a pair of front 2.0 shocks that came off my 2008 D7. Can anyone tell me what they are worth?

I'm not sure if I should keep them as a back up pair or sell them.

 

[1shooter]

Any input on what these would be worth would be appreciated. They are in excellenat shape.

They are the Ride FX Pro Series Air 2.0