minimalist filament rack extendable

I have created this filament rack to be as simple as possible I used the shoes rack bars that I dont use anymore linkhttps://www.aliexpress.com/item/1005006952438226.html?spm=a2g0o.productlist.main.1.5c851ab3vGV9L7&algo_pvid=b848113c-6a99-4ac8-b92d-b13293e88ae9&utparam-url=scene%3Asearch%7Cquery_from%3A