Cats are fastidious creatures who love a clean, fresh litter box, and their pet parents do too Nature's Miracle Odor Control Litter Box Liners control and inhibit odors caused by bacteria on the litter pan liners. Plus, they provide extra protection for a fresh litter pan environment. Easy-pull drawstrings help support removal. These liners fit most extra-large and jumbo multi-cat litter boxes. Fit the liners to the box, fill with litter and remove when it's time for cleanup.