Excellent manufacturing, and I read the reviews about the wheels not turning, however, that was not the case with the two that I purchased. The only reason I didn’t give it five stars was because these are very expensive, and although the material is sturdy… It is simply galvanized metal. I’m going to buy two more to go underneath my platform bed… Just make sure you have at least 9 inches of vertical space if you plan to do the same.￼￼￼