I have 3 7 foot ones and I love mine! Very sturdy, easy to put together and take apart. I made mine into one huge, long one last year with two circular ones with the remaining end pieces but this year I split them apart. I’d have landscape Timbers previously but those deteriorated after about 10 years.
I have this one. https://www.amazon.com/gp/product/B08T5Q4NXH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1