Vo-Toys Kitty Whiz trainer actually trains your cat to use your toilet instead of a litter pan! The kit includes a package of enticing herbs, a heavy duty reinforcing ring that fits over your toilet seat, a floating insert form, an instruction booklet and a diploma to give your cat at the successful completion of his toilet training. Kitty Whiz measures 16" L x 15" W. Not Recommended for large cats, 10 pounds or over.