PetSafe ScoopFree Cat Litter Tray Refills with Premium Non-Clumping Crystal Cat Litter, Replacement Trays for the PetSafe ScoopFree Self-Cleaning Cat Litter Box, 6-Pack UNBEATABLE ODOR CONTROL: Crystal cat litter absorbs urine and dehydrates solid waste to remove odors; covered trap locks away solid waste and odor so you never have to touch or see smelly waste LESS MESS: Low-tracking crystals dont stick to your cats feet and are 99% dust-free LEAK PROTECTION: Plastic tray lining creates a powerful extra barrier to help protect against leakage EASY, CONVENIENT CLEANUP: No scooping required; simply remove the disposable litter tray and throw it away PRODUCT SUPPORT: PetSafe brand's U.S.-based Customer Care experts will be glad to help; call Monday through Saturday at 1-800-845-3274 EXPERIENCE: PetSafe brand has been an industry leading U.S. manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year <span class="a-text-bold">5x better odor control</span>: absorbs liquids and dries out solid waste <span class="a-text-bold">99% dust free</span>: for fresh air and a clean home <span class="a-text-bold">Non-tracking</span>: crystal litter stays in the box and off your floors <span class="a-text-bold">Lightweight</span>: no more lifting heavy bags or tubs of litter