Pet pellets are made from a mixture of pine, aspen, and birch saw dust that has been kiln dried and then compressed under extreme pressure. The low moisture content of the wood fiber allows the pellets to absorb up to three times their weight in odor causing liquid. You and your pet will love pet pellets because they are made of all natural wood fiber with no additives so they are completely safe. They have the pleasant sent of pine without all the dust and mess of wood chips or saw dust. They are easy to use and economical too. For larger animals, you should only need to remove and replace the soiled pellets. This means you will be spending more time with your pet and less time cleaning your pet area. Horses, cats, rabbits, birds, gerbils, ferrets, and other pets will love Pet Pellets.