vertical planter for orchids

vertical planter for orchids, I needed to use aluminum tubes and I came up with a vertical planter for my orchids, it can also be used for other plants the aluminum tube is 16mm in diameter, each support has a metal core of the same diameter with a length of 59mm for the circular ones and 49mm for the square ones or even inserted caps with screws at the end to increase stability, but they are not present in the project, let me know if you want me to insert them