This dolly is rated at 800 lbs, with two 12" wheels and one 8" swivel wheel, all flat free, plus has adjustable height. I bought this new, used it once, found moving our tent trailer on pavement was quite simple, but on our rough lawn where I wanted it wasn't so easy, but with help was doable. However we put in a gravel parking pad for the trailer, which I can now back onto with our truck, so really have no use for this, so thought someone else might. Is assembled and and has been stored in my shed since it's use. All low ballers will be ignored!