A black swastika, about 1.5mm. It's suppose to be a white outlined, with clear center, through which the aircraft surface shows. These came in half parts, and the first one I tried to apply folded over on itself, just like the other I mentioned. I don't understand why I have so much trouble with them. Since then, I have unfolded two decals that came with the P-38 Nightlignting with no problem, and I have unfolded several others. Most of the time the decals slide right off the backing, without problems, but they do fold now and then. The decals with this He-177 are really nice, and it may be that I've had trouble because they are so fine. It was hardly necessary to apply decal softening solution to the ones I got into place (all except two), because they seem to melt right down on to the model surface, as if painted on, from the start. I'm afraid it was once again my lack of skill that was the real culprit.