Help! Repost from another thread...

[AlpineWhite]

So I just bought this rack to house my new gcx controlled rack rig and low and behold it comes with a piece of gear already inside! The problem: I have no idea what it is.

 

Help me! What is this/what does it do!?

http://www.flickr.com/photos/alpinewhite/4625176660/in/photostream/

http://www.flickr.com/photos/alpinewhite/4625176664/in/photostream/

http://www.flickr.com/photos/alpinewhite/4625176668/in/photostream/

http://www.flickr.com/photos/alpinewhite/4625176672/in/photostream/

http://www.flickr.com/photos/alpinewhite/4625176676/in/photostream/

 

 

Thanks

Adam