First of all all the products work as advertised, when I received mine it was short, three screws with no problems, I had plenty of these in my shop but it does the job not It doesn't help my opinion of the product, especially when I broke two screws when I installed it. Installing the casters wasn't a difficult task, but if you're expecting all the hardware to be there, it can be an issue. Once installed, it does the job, but the steel isn't the best quality. just click, which requires some effort, the output works, yes economical, somewhat, but you get what you pay for. but in a pinch or if you're on a tight budget they work, but I don't think they will last the life of your bank