The final measurement is: 9.3" x 7.1"x 2" (23.5cm x 18cm x 5cm), the shoulder belt is: 59" (150cm).
Step1: print it out on A4 size paper1:1(100%);
How to print a 1:1 paper? When you print it, do check the printer properties to don't change the settings to fit the page, should be at "none", also, you need to set all margins to "0"(if your software has margin option, do it, if not, just leave it there), then you get a 1:1 property print out.
Step2: paste them on a thick kraft paper;
Step3: cut off the paper and do it!
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