The tuck in top carton can be used to ship items, and also put the item on display in the same box.
They are easy to use, do not need to be glued and are very sturdy.
The die cut trays can be used for showcasing items in a display stand. They can be used in bakeries, on store shelves, etc.
Die cut trays are also unglued. They have lock in tabs on either end which hold the tray together, and are very quick and easy to fold up.