The files are standard at 6 inches (1:12), but they can be easily scaled to 3.75 inches (1:18) and 12 inches (1:6). Here are the percentages for enlarging/reducing the files: • 1:12 Scale – 100% • 1:18 Scale – 66.6% • 1:6 Scale – 200% ATTENTION: you are purchasing the STL files for 3D printing that you will print independently and not the physical model of the diorama printed by us. If you would like the diorama to be printed by us, please email us your request without purchasing the STL file first. Before purchasing, check the maximum print size of your 3D printer. All our STL files are tested and printed with a Creality Ender 3 S1 printer with a print size of 220 x 220 x 270 mm. If you do not pay attention to the above and still proceed with the purchase of the STL files, there are no refunds.