The Chairless Chair enables ergonomic workplace design

I really wanted to learn more about this but that website baffles me!
But how do you buy it?
Video would be helpful here. Appears that the chairs are built to spec for large manufacturers thus far.
Do you need to go to work with a scooter to use these?
omg. As someone with a bad hip, this would be phenomenal! please let us order one!
"You can't be serious!?" – John McEnroe