ARM & HAMMER Multi-Cat Clean Burst clumping litter has a fresh and clean scent that helps refresh litter even when you can't scoop. This cat litter combines powerful ammonia neutralizers and baking soda crystals to eliminate the toughest odors. It provides hard clumping for easy scooping, in a formula that’s 99.9% dust-free and low tracking. Large size 40 lb box of cat litter. Also available in unscented.