Say goodbye to the litter box blues! PetSafe ScoopFree Complete Disposable Crystal Cat Litter Trays take the mess out of cat ownership. Each pre-filled tray slides right into your ScoopFree box, no scooping, scrubbing, or restocking needed for weeks. The crystal formula works overtime, absorbing liquid and drying waste fast, while keeping odors locked down. Plus, low-tracking crystals mean less litter scattered around your home and fewer paw prints on your floors. When duty calls, just toss the whole tray and pop in a fresh one. Cleanup has never been this painless! Compatible with PetSafe ScoopFree Crystal self-cleaning litter boxes (sold separately).