The ScoopFree® Premium Blue Crystal Litter 2-Pack is low tracking and 99% dust-free, which means you can do a whole lot less sweeping up! Just 1 bag can last up to 30 days in a single-cat household—that means less time cleaning the litter box so you have more moments to snuggle with your cat! Crystal litter absorbs urine and dries solid waste to quickly remove odors 5 times faster than clumping clay litter. This product includes 2 pre-portioned bags of lightly scented premium ScoopFree litter ready for use. This litter can be used with any brand litter box or reusable tray, but we recommend using it to refill the PetSafe® Deluxe Crystal Litter Box. Your pet deserves the best. Trust PetSafe® to help keep your pet healthy, safe and happy.