Cardboard gives paper cuts that look like machete wounds and hurt real bad.
One cool thing about the chair is that it's made entirely of cardboard, no adhesives or anyhting. So, all those vertical and horizontal slices can slide apart and pack flat. Also, if you're a lefty, you can put all the horizontal slices in the opposite way and get the armrest on the left side instead. As a chair, it's definitely strong enough, but it's not really durable enough to last long. The edges get beat up easily.