Small, easy to rebuild, generally looks like a star destroyer,and same blue engine as the real one. The color may change due to the different color of the bricks we have.
The wedge-shaped Imperial Star Destroyer is a capital ship bristling with weapons emplacements. Turbolasers and tractor beam projectors dot its surface. Its belly hangar bay can launch TIE fighters, boarding craft, land assault units, hyperspace probes, or be used to hold captured craft.