IKEA ALEX Drawer Organizer, fits just right.
In order to fit perfect you need to follow the same layout.
Print:
3x - (File 3x5AH)
1x - (File 5x9)
1x - (File 10x3FH)
2x - (File 4x6)
2x - (File 7.5x6)
The author marked this model as their own original creation.