Natures Miracle Natural Clumping Litter does not contain any clay, it has a natual pine fragrance and is virtually dust free. This litter instead uses gentle cord cob granules and Natures Miracle's advanced Bio-Enzymatic Odor control system which begins to break down urine, feaces and ammonia odors on contact preventing odors from spreading through the house. The corn granules absorb 4 times more then conventional clay litters and clump fast to trap odors and wetness quickly.