My cat has always taken a lot of cat litter while out walking the toilet. The rug has about 90% are somewhere deterred to spread in the house. The problem is that some grains always drives the cat between the paws and then loses somewhere. But with deise rugs they are already out when trodden on and as good as ever he catches it on. You can do it now and then vacuuming or simply shaking out and he is clean again then! Super thing and I kanns recommend at this price.