The more cats you have, the more you need the extra-strength odour elimination of ARM & HAMMER™ Multi-Cat Strength Clumping Litter with Ammonia Odour Block formula. It combines powerful baking soda crystals with ammonia odour neutralizers to eliminate the toughest odours on contact, no matter how many cats you have. Plus a fresh scent is released every time your cat uses the box. Provides rock-solid clumping for easy removal; 99% dust free and low- tracking.