I ordered these roles a few weeks ago. They were shipped on time and well packaged. I just installed them on a platform that holds about 550 pounds. What I like is how easy it is to move the platform with the wheels in the low position. They roll and turn very easily with the load. However, if I need to lower or raise the rubber mounts, the weight must be removed from each roller during adjustment. The rubber mounts seem to hold the weight well once adjusted. I don't know if I would give the commercials more weight than I do now.