In conjunction with fine-grained litter (I use the perfumed house brand (baby powder) of the animal feed chain eating ****, not the cheapest but in my eyes and in my experience, the best cat litter) the scattering is very reliably held in the mat. I was really surprised at how well the mat work.
Absorbs times every 2-3 days, the mat "empty", the problem can be "done" as the rumfliegenden cat litter outside the toilet viewed. Certainly not the cheapest mat on the market but definitely one that works.