Very nice soft large Gummivorleger for Jumbo Cat Litter Box. Knobs pleasant to touch. No odor (for the human nose). Was readily accepted by the cats. The cleaning is very easy. High corporate and loosely scattered simple again. In the cat litter box Rinse under running water occasionally. However, one must be careful when "occasionally-on-the-mat-Pinkler that the urine when high business does not run off the mat (because it is so soft). The mat is so popular that this occurs only very rarely. Because of the large area of the mat nothing bib. We would buy it again!