It's funny, these come up from time to time. I'm way way way too lazy to find a link to another thread where there's pictures of them, but they exist. Just every so often. It does look like actual Ford flares on this bed, though, which is different than the usual Chevy ones that they put on.
But let's all remember that it's only for looks, because the Ranger's rear axle, frames, springs and transmission are way too weak to really haul anything that you'd need a dually truck for.
Oh yeah, almost forgot to mention, I kinda like the look of it anyway!