Did you know that .. Bentonite (from Fort Benton, Montana, USA) is a clayey rock resulting from the alteration of volcanic material. Known and used since ancient times, today we all have to deal daily with this extremely versatile mineral; Bentonite can be found in creams and cosmetics, wines and fruit juices but also in some medicines. In the context of cat litter, bentonite is used for its ability to swell up to 10 times its own volume and to absorb liquids and odors, held in an easy-to-remove agglomerate, leaving the remaining product intact. * Long life: top performance litter: 8 liters last 40 days (20 liters last more than 3 months) * 100% Natural: composed of clayey mineral with natural absorption capacity. Free from chemical treatments * Makes the ball: high agglomerating power Packaging : 20L plastic bag