Muver 6 with Flightop (flight case + tabletop) accessory (full demo) 

That's tight! I love the white color frame!

where I can buy one of those things

If it had been improved and made lighter and more comfortable, there must have been a demand for purchase. Especially, it was made 9 years ago, but these days, Chinese wheels are more convenient because they are folded. And it would have been nice if the levers were made more comfortable. These days, only a foldable small cart is available, but the advantage of this cart seems to be that it can be unfolded in two stages. It's a shame in many ways.