Hi-Corner Litter Pan is our best selling original design! The Hi-Corner Litter pan is the perfect litter pan for ferrets and other pets. Yes, small animals can be litter trained. The Hi-Corner Litter Pan fits easily into small animal cages. It features elevated high corners to help accommodate messy back-ups, while also preventing messes and litter from scattering outside the cage. Built-in hooks make cage attachment easy. It is constructed of easy-to-clean, stain and odor resistant plastic and is available in four assorted colors.