These are a pair of different grommets for the base of the Creator Pro for the hole through which the cables for the HBP pass to the motherboard.
The ones I'd downloaded before needed supports and didn't fit terribly well. These don't need support and clip in firmly.
Print orientation is important. For both, print with the top down.
The rounded option will almost certainly need a brim
These should probably be ABS or PETG due to the heat in the enclosure