STL Files for camera mounts

I was planning on getting my mount made by CraftCloud, and in uploading the .stl file it askes the file units or inches, centimeters, or millimeters. Does anyone know which unit the .stl files in the camera guide are set up for?

I can confirm that all stl files under actionstitch-player/mounts at main · gilbertchen/actionstitch-player · GitHub should be printed in millimeters. CraftCloud will show the dimension on the next page which should be about 15-16cm in length.

Thank you. Very helpful!