Odour Buster Original Clumping ClayOdour Buster Original is a premium, clumping cat litter made from responsibly mined, superior quality clay and eight exclusive odour and bacteria eliminating ingredients. It was developed from a formula originally created to control odours in the toughest agricultural settings: pig and chicken farms. If the Odour Buster recipe can eliminate odours in chicken coops and pig pens, imagine what it can do for your cats litter box! COMPOSITION Odour Buster