Naturally Fresh Walnut Shell Non-Clumping Natural Pellet LitterWhile all of Naturally Freshs walnut shell formulas spark a cats wiring to bury their business in nature, our non clumping pellet litter isnt just for cat kids. This formula is ideal for all small animals, such as gerbils, rabbits, ferrets, and puppies. Naturally Fresh Pellet Litter is made with a proprietary blend of the fibrous materials found only in walnut shells. This litter provides superior odor control, absorbs three times better than clay