Felt at Music and art school, Silkeborg
We call it "Roll Roll Zip Zip".
When the show starts you roll out the felt for a comfortably seating, and after
the show you roll the felt back and the benches are used as stairs.
The cutting in both ends of the felt works as a lock when you roll the seats, and it is easy to stow the seats away when you dont need them on the stairs.
5 mm felt with EVA backing has been used for the seats.