I bought these as a gift for someone.  These boards look like they will last a long time and seem to be made of a tougher material that will stand up over time.  I was hoping they would be a little more flexible than they are, but you can still slightly fold them. Giving them a 4 for that reason.  Also I want to note the direct ship company these boards came from accidentally shipped me a spatula the first time instead of the boards.  Wayfair took care of shipping me the correct item immediately which I was thrilled about.