With Tidy Cats 4-in-1 Strength Clumping Liter, you will finally have an ally against the four offenders of clean - odors from urine, feces, ammonia, and the mess of weak clumps. The 4-in-1 Strength knows just what it takes to put those offenders in their place. With the advanced odor control of TidyLock and powerful clumping, that quad-trocious mess will be replaced with a fresh, clean home. | Purina - Tidy Cats 4-in-1 Strength Multi-Cat Clumping Cat Litter | Size 35 lb