The future of kitty cleanup is here! Includes 1 disposable litter boxes. No\nmore plastic liners or trays that can create unhealthy odor or bacteria\nbuildup. Kitty Sift offers convenient, healthy, and sustainable alternatives\nto the plastic litter box that protect your kitty and the planet. We strive to\nprovide innovative and sustainable products for pet parents everywhere. Can be\nused as a standalone litter box, or as a liner. Replace every 2 to 3 weeks, or\nas needed; usage may vary based upon your litter type and kitty's habits.