The stuff is cool.

From their site

Q: How many times can I fold / unfold an Orikaso product?
A: The folds in Orikaso are often referred to as a 'living hinge'; due to the unique properties of polypropylene Orikaso products can be folded thousands of times with none of the problems of fatigue that you would associate with other plastics. We are so confident of this that every Orikaso product comes with a 10-year guarantee.