I have three cats, two of which are Maine coons who live to dig. They were kicking so much litter out with the low wall. They didn’t even hesitate with the high wall (and it’s substantially higher) and the litter is contained.
Does not stay attached well to the box, but does an amazing job of containing litter and messes as intended. I just wish that it could stand up to a cat jumping off it…
This helps keep my corner pee-er’s pee inside the box!
Helps with my cat who pees a little high.