Naturally Fresh Pellet Litter is an eco-friendly, non-clumping litter made from all-natural walnut shells. Walnut shells have the unique ability to control ammonia odors, meaning Naturally Fresh neutralizes odors organically without relying on harsh perfumes. Naturally Fresh is sustainable, non-toxic, and free of harmful silica dust. All Natural & Biodegradable. Virtually Dust-Free and Low Tracking. 7X more Odor Control than other leading pellet litters. Homegrown in the USA. Clay Free, Corn Free, Grain Free. For Cats, Dogs, & Small Animals.