Purina Tidy Cats LightWeight 24/7 Performance clumping, scoopable cat litter. With an added ammonia blocker that keeps ammonia odor from forming for 21 days when used as directed, this multi cat litter offers great odor protection with the same amount of litter at a fraction of the weight of regular cat litter. Tidy Cats litter contains an innovative triple-odor protection to defend your home against strong smells, leaving behind a fresh scent. The lightweight litter is easy to carry, weighing 50% less than the leading clumping cat litter and provides a clean and easy pour. The low dust cat litter is 99.9% dust free and forms strong, tight clumps for quick and easy scooping, while the slow-release deodorizing system ensures continuous odor control with absorbency and clumping in every patented granule.