The future of kitty cleanup is here! Includes (1) disposable litter box, (3) sifting liners, and (1) shield cover. No more plastic scoopers, liners, or trays that can create unhealthy odor or bacteria buildup. Kitty Sift offers convenient, healthy, and sustainable alternatives to the plastic litter box that protect your kitty and the planet. We strive to provide innovative and sustainable products for pet parents everywhere. Replace every 2 to 3 weeks, or as needed; usage may vary based upon your litter type and kitty's habits.