We use very fine cat litter, which rapidly spread throughout the apartment. Both Toilettenvorleger take some on the scattering. For cleaning it can shake you easily. However, I am now of the opinion that it would do a normal Schmutzfangmatte also, moreover, saw the somewhat prettier and can be washed in the washing machine most. So The mats serve their purpose, but are not absolutely necessary, because the cats only briefly step on and still lose on the rest of the way to the living room enough litter.
