100% sustainable, Sustainably Yours Clumping Multi-Cat stops odors on contact, clumps firmer and faster than any other litter we've tried, plus...it's flushable! Low dust, chemical- and fragrance-free. Maximum odor control while minimizing dust and tracking. Ideal for homes with one or two cats. Made from a special blend of corn and cassava, two natural, renewable and biodegradable crops!