The ScoopFree disposable litter tray is the reason you can leave the ScoopFree self-cleaning litter box alone for weeks at a time * The tray is completely disposable and made from recycled materials * Pre-filled with premium crystal litter free of perfumes and dyes * You don"t have to see, touch, or smell messy waste * Simply replace the disposable tray every few weeks, and your ScoopFree litter box is just like new