A lightweight cat litter with virtually indestructible clumps? Introducing ARM & HAMMER HardBall Clumping Litter. The innovative formula works to quickly shrink cat waste and odors into ultra compact clumps for easy, no-mess scooping. Our Lightweight Perfected Formula is nearly 60% lighter than our regular clay litter YET is highly absorbent. Scoop it. Dont change it. Freshness guaranteed up to 20 days. Purrfect for multiple cat homes! Ingredients: Extruded Sorghum; Paraffin oils (petroleum), catalytic dewaxed light; Agglomerated wood, mineral and starch granule; Benzisothiazolinone; Methylisothiazolone; Fragrance.