new partition walls for storge box

new partitions for storage box
i use these boxes a lot. what bothers me is that with small wedges the things slip under the partition walls or the walls lift up or slide out when parts are removed.
that's why i created the very precisely fitting partition wall.
simply replace the old walls with the new ones.
first print a partition wall and adjust the thickness, length and height if necessary. it is correct if the walls go in very tightly.

the link shows which product is involved:
https://www.amazon.de/s?k=B085NVSNQR