This is a 1/1000 or so scale hangar deck for AMT's K-7 Station model from the Original Series episode "The Trouble With Tribbles". It is based on the hangar designed by Greg Jein for the DS9 episode "Troubles and Tribblations". This part fit's the AMT model width wise, but will require some material to be removed from the top or bottom in order to fit properly.
Shuttles in the picture are not included but can be bought as a 6 pack in my
1/1000 TOS shuttles.