bathroom hook suction cup

two type of bathroom hooks, one with a circular base that needs extra enforce supports for at least the first 20 layers,and the other one with a square base that needs less supports.
any questions, just post it in the comments.

https://youtu.be/8WvXY7NK_8w

https://www.instagram.com/p/BuK5dFQniuM/?utm_source=ig_share_sheet&igshid=dgfbieihn3uq