The underlay mats are so pliable that a sports equipment already deeply impresses by its own weight in the material. The highly structured, almost sticky surface acting complicates cleaning with a vacuum cleaner because particles adhere effectively to it. The mats are much better than, for example, anti-slip mats in the bed box of a caravan to secure the stored Camping furniture and sun loungers, which adhere to these wonderful mats; accordingly I will "divert" the mats. Underlay mats for sports equipment should have a much more solid consistency.