OK, brain pool: the subject at hand is wheel barrows. The poly tubs would be better for mixing concrete in, right? (I'm thinking of the corrosive nature of concrete.) The poly can't rust. But, I've always had metal tubs on my wheel barrows. And that metal has rusted away after about 10 years. Then there's the knobby tire; why? For off-road use? Like all the others are used on the highway? [img]/forums/images/icons/confused.gif[/img]