First you glue the lids together with a sheet.
Next you put a few dabs of glue in the slots and glue the arches together with the strips.
Finally, you just glue the lid on and the strips on the sides.
First you glue the lids together with a sheet.
Next you put a few dabs of glue in the slots and glue the arches together with the strips.
Finally, you just glue the lid on and the strips on the sides.