SmartScoop Litter Catching Mats help trap and hold litter dragged out of the litter box so that it doesn"t end up all over your house! For use with any litter, and any litter box, these SmartScoop Litter Catching Mats are comfortable on your cat"s paws and easy to clean. This mat is the small, half-moon shaped mat, measuring 22.5" wide by 14" long.