It took a bit of doing - we needed to get a product name just from the look of the thing. But after a lot of intensive research (aka Googling words like "hay" and "wheels") we found it in the product list of a few agricultural suppliers.
Problem was, they weren't close enough to deliver it - too heavy to make it worth their while. Then, completely by chance, we found one in the yard of a local firm. We'd been scouting them out for just to get a general idea of what they stocked, but not only did they have the very thing we'd been looking for, and would deliver, it was also the last of their stock so they wanted it off the premises and gave us a discount. So thank you, TCSIt's one of those things that does exactly what it sets out to do - it's a hay rick that you can move around the place. And last winter, with all the rain, that was critical - hay would get very damp an inedible otherwise. And the wheels are so well designed that they didn't chew up the very wet ground that we had last year.
Marvellous thing.