The mat is exactly what I expected. It is stable enough to briefly perpendicular to the wall to lean but still flexible enough to small bumps (anti-slip mat, see below) gently equalize. But longer term they should not be stored are otherwise deforms. Unfortunately the mat slips already at low forces acting on the table. An anti-slip pad in my opinion indispensable.
So I actually write the article but is good customer service. Answering a question on a Saturday night after 20 clock it deserves to be simply mentioned!
