This clumping cat litter is made of all-natural clay. Its patented “Smart Odour Shield” technology blocks ammonia release, uniquely neutralizing urine and faeces odours for 40 days. This ultra-fast clumping and easy-scooping litter makes litter box cleaning so effortless. OdourLock 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’s and 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.