This is a ring box meant for an engagement ring size 8 and under. The ring must not exceed 3 mm in thickness.

Post processing: Glue all pieces together with CA glue or Super Glue. You will need a small nail for the hinge. The hole is big enough, if cleaned up with a drill bit, to fit a 1.75mm piece of filament, but will break easily. The nail is the best way to go. Just cut it to length and push it into the holes and then its done!