ARM & HAMMER™ Double Duty Clumping Litter eliminates both types of odours for Advanced Odour Control. Its breakthrough formula destroys urine AND feces odours instantly and helps keep your home smelling fresh and clean. Here is how it works: Powerful moisture-activated baking soda crystals boosted with feces odour neutralizers destroy urine AND feces odours on contact. Rock-solid clumps let you remove the source of odours easily. 99% dust free and low- tracking. Easy-pour, no spill spout. Plus…a fresh scent refreshes the litter box each time your cat uses the box.