These are large hexagons with the surface of the moon on them to hang on your wall as art.

There is also a mounting jig for aligning the tiles on the wall.

The back of the tiles have a slot to use a screw or nail for mounting.

The jig has this same hole but for lining up where to screw your next hole.

The STL includes 15 tiles, but the 3MF only includes 9.