VERY misleading on the railing specs. Says it’s for a “max 5 1/2” rail”- I have a 2 1/2” rail”, and it is much too large. I have the sliders set at the minimum width and the leveling bar at the max. It’s not very secure and the load is concentrated in small areas. Only buy if your rail is greater than 3 1/2” thick (which should be written on the product description, not by me!). Debating either just using it as is, and risking it damaging the rail with the weight of the soil, or returning.

Also noticed a common question in the Q&A section asking the material of the rail mount. The question is repeatedly answered incorrectly by Wayfair, who’s saying “plastic”. The railing mount is galvanized steel.