Made with walnut shells, Blue Buffalo's Naturally Fresh Quick-Clumping Litter provides far superior odor control and absorption than other leading brand cat litters. This litter is made with a proprietary blend of fibrous materials from the walnut shell, and neutralizes odors better than clay, pine, and wheat. Because this formula is so absorbent, one bag of Naturally Fresh Quick-Clumping Litter is equal to three bags of the leading cat brand. As an added bonus, this product forms into hard clumps so that clean-up is simple and mess free. Unlike clay litters which often throw off silica dust, Naturally Fresh Quick-Clumping Litter is virtually dust-free so both you and your cat can breath easier. In addition, this litter doesn't stick to cats' paws and so it won't get tracked around the house. To top it off, Naturally Fresh Quick-Clumping Litter is 100% natural, eco-friendly, and made in the U.S.A.