These plastic lids are different than our paperboard lids in that the sides of the plastic lids slide *inside* the walls of the base. If you use shred or other filler material in your presentation you will need to ensure there is some clearance or room for the walls of the lid to fit just inside the inside of the walls of the bottom.
Love the new box lid design! I find I don't carve out time to fold my boxes. These are so easy to bend and place on the box, and they look great. Thank you!