Finally, a lightweight litter that doesn't act lightweight. Arm & Hammer Clump & Seal Lightweight Multi-Cat Litter is guaranteed to control odor for 7 days, is 50% lighter and is 100% dust free. This revolutionary cat litter first seals and then destroys odor on contact with a powerful formula of heavy duty odor eliminators plus Arm & Hammer Baking Soda. Add an extra boost of freshness to your litter box. Arm & Hammer baking soda destroys odors instantly in all types of litter – so your box stays first-day fresh longer. Moisture activated scent refreshes litter every time your cat uses the box, and innovative technology helps prevent clumps from sticking to the bottom of your box.