Deliver a swift knockout to tough odors with Purina Tidy Cats 4-in-1 Strength clumping litter. This variety is specially formulated to attack the three key offenders, urine, ammonia and fecal odors while helping eliminate the mess of weak clumps. This leaves your cats' litter box area smelling fresh and clean, so your cat companions are happy and willing to use their boxes each day. The powerful clumping action helps to make cleanup quick and easy, and the 99.6% dust-free formula pours clean into each litter box for less mess.