This clumping cat litter is made of all-natural clay. Its patented "Smart Odor Shield" technology blocks ammonia release, uniquely neutralizing urine and faces odors for 40 days. This ultra-fast clumping and easy-scooping litter make litter box cleaning so effortless. Optimal odor control for more than 40 days Safe for the respiratory tracts of humans and cats Quick and easy cleaning for a multi-cat environment Moisture-activated scent Tested by veterinarians Odor lock generates less waste than competing clay litters: you'll use 45% less litter per year. Plus, it's 99.9% dust-free, leaving no tracking on floors or furniture and keeping your cat sand your family's respiratory systems safe. It is soft and comfortable for your cat. It is easily carried thanks to its side handle and is manufactured in Quebec.