About This Ultimate Odor Control: The cat litter refill features a 7-layer structure that effectively controls and eliminates litter box odors, keeping your home fresh and odor-free for longer. Compatibility: Generic litter refills compatible with Standard, Plus and XL Pail models. Heavy Duty Litter Liners - The cat litter refill bags is made of strong and durable material, which is tear-resistant and leak proof, making it easy to handle daily cat excrement. Capacity&Save Money: Each package contains 4 cat litter refill cartridges. each refill can last up to 8 weeks for one cat. Ideal for multi-cat families or daily use. Easy to Use: Pull out a little of the cat refill bag, tie a knot and pull the plastic film through the center of the cartridge,place the refill in the pail. Overview Brand : Creatwo Unit Count : 4.0 Count Recommended Uses For Product : Small Animal Material Feature : Disposable, Odor Control Color : Blue Material : Plastic Item Form : Bag Scent : Unscented Number of Items : 4 Item Weight : 1.5 Pounds