I had 2 cats that had to stay in a cage except for time out on the balcony or in the living room when I was in the room. Sometimes that didn't even work and they would urinate right in front of me on the floor, wall, pillows. I had to had my carpet replace hence reason I resorted to the cage. This litter really works. They are free to run around now. They really use it and I haven't found any accidents at all.