1

Cut a white A4 cardstock in half to make two A5 size pieces. Score the first A5 cardstock from each edge at 1” (turn and score until all sides are scored), this will be your lid.

2

Repeat with the second A5 cardstock, but this time score at 1 1⁄8”, this will be the bottom (you can mark it as such on the inside with a pencil).