Fits passport size 125mm x 88mm (Australia passport)
Passport depth can be very different for individuals, depends on the number of visa stickers and/or passport versions. e.g. The newer version of Australia passport is slightly thicker than the old version. Please measure it before printing.
Here is the parametric model for different sizes or multiple.
Please add some tolerance to your measurements. e.g. I use 126mm x 89mm for Australia passports (with +1mm tolerance), and it works well.
PETG is recommended.
The author marked this model as their own original creation.