Hard to imagine how well it works

We have these pads for different things in use. Once the conventional variant in which we have already cleaned three times the pad with running water and washing up liquid. Since the phone glued even vertically in the car. We also use it as a slip-resistant under the armrest pocket (leatherette homemade) on leather chair with the in-laws. The pad sticks like crazy - without glue or any other residual products. Would I buy again