28) Promote-Through Price = Range Of models offered within a period of time/number of items at the start with the interval This makes use of recycled newsprint that's molded into a form which protects the eggs. More recently, egg cartons have also been made out of expanded polystyrene and PET. https://waterinbox.movie.blog/2025/09/24/water-in-sustainable-pak-a-choice-that-protects-generations/