This is a decent start for it's purpose, but falls short of what I thought it was going to be. Wouldn't you think that a "tractor" would have wheels? No, this one doesn't, but was able to fashion making it mobile by affixing some 2/4's with multi-directional wheels attached (all purchased by me independently of the item here). It is a bit flimsy, but with the butressing afforded by the 2x4's, it is now sturdy and serves the purpose of safely getting my chickens out of their coop and onto the grass during the day-time. It is relatively easy to assemble, so you do not need to purchase the handy-man assembly extra to put it together, as I did - waste of money.