QQKIT is recycled paper-based and blend of activated carbon. QQ KIT is lightweight, about 75% less than clay-based litter. In order to produce paper litter, post-consumer paper is re-pulped, de-inked, and screened. During the re-pulping process, the fibers are de-watered, pelletized, dried, combined with the natural deodorizing agent (alternative activated carbon or coffee dregs or tea leave dregs) mixture naturally neutralize the cat's odors. This paper-based litter is dust free and will not harm your cat's respiratory system. Plus, it is highly absorbent granule. The size of granules is about right since it would not stick to the cat's paws when it leaves the box.