traps litter, easy to clean
I've had one of these for almost two years now and though it is beginning to degrade at the edges, it's still perfectly useable. Traps litter, works better with smaller grain litter than larger ones. I shake it over the litter tray a couple of times a week, and either throw it in the washing machine every so often, or use the power shower spray to remove bits of litter, spray with an animal-friendly disinfectant, rinse again and hang it to dry. Good product.
I recommend experimenting with placement - my cats seemk to leap out of the box so it works best if it is a couple of inches away from the box edge.