This is the aero 400xt foot with 2155 fit kit that was discontinued in 2014.
http://i125.photobucket.com/albums/p43/jnismo/2AB3D80E-7C56-42DF-BE94-25C5981E579B.jpg
http://i125.photobucket.com/albums/p43/jnismo/7701C4A8-DEBB-49C6-A327-0B5D977EC9B2.jpg
http://i125.photobucket.com/albums/p43/jnismo/AEC697E3-A260-4389-B8A8-DBD40D2292F1.jpg