Our Low Tracking & Dust Control formula is made using larger granules, giving you a litter that's 99.9% dust-free and specially formulated to stay in the box (where it belongs). It's naturally safe for you and your cat with no harmful chemicals, no artificial perfumes, and no clay dust, and it lasts longer than the leading U.S. brand. Home clean home.Unlike clay litter, World's Best Cat Litter uses a patented process to compress corn into super-absorbent granules that TRAP ODOR DEEP INSIDE and FORM TIGHT CLUMPS ON CONTACT - so you can do more with less litter.