This is upgrade set for Zvezda/Revell 1/2700 Imperial Star Destroyer kit. It includes the following parts:
The hangar bay is detailed and more screen accurate. It also has holes to light up the space above scalloped alcoves.
To install the hangar bay you will need to cut out the existing one, clean the edges and put the new one in place. You can also sand the raised detail on the edges of the hull to make better fit.
Also included in this set is detailed 1/2700 Tantive IV blockade runner model
As always, the parts are provided unpainted with the supports still attached, to provide better protection during shipping.