This set is for accurizing Zvezda/Revell 1/2700 Imperial Star Destroyer kit. It includes the following parts:
The engine bells do not require any modifications of the kit.
The shield generators require a modification of the top of the tower bridge to be installed. You will need to cut off the ridge meant for connection of the stock generators.
For the garbage chute you will have to cut out a square opening on the back of the tower bridge.
You will also receive a tiny 1/2700 Millennium Falcon that you can attach to the back of the tower bridge as seen in ESB. Measures only 12.9 mm long!