This is the answer… I bought these from Amazon for my Monstera. I put 2 poles, 2x linked in mine.

Amazon Link

See my post below for my Costco Monstera with the poles and other plants

https://www.reddit.com/r/Costco/comments/w7x8yx/recent_costco_plant_acquisitions_so_cal_region/?utm_source=share&utm_medium=ios_app&utm_name=iossmf