I loved this child seat and although it didn't look like the safest way to carry a child on your bike, it felt far safer than it looked. It also taught my child to balance and gave us a lot of fun and excitement.
The fold with the seat attached was really good (check the video linked below).
After posting the video I was bombarded with requests to buy the seat and years later, when I no longer needed it, I finally did.
I don't think you can buy the IT chair any more but I'm sure there are versions of it out there.
Here is a link to the video on YouTube.
The kid in this video is now taller than me.
by documentally