PETCO Paper Bedding provides unsurpassed odor control for your pet's habitat. The addition of baking soda helps to eliminate ammonia odors on contact. With the ability to absorb three times its weight in liquids , it makes for a dryer, healthier environment for your small animal, and paper bedding won't cake on the bottom of the habitat. Paper bedding is softer and less dusty than other forms of bedding, is biodegradable and free of inks, clay, chemicals, and wood oils. Made from reclaimed paper pulp waste.