Intersand Odourlock Cat Litter neutralizes unpleasant odours for up to 40 days! Its patented technology blocks the formation of ammonia, which causes unpleasant odours. Ultra-fast clumping makes it easy to scoop and reduces the amount of litter used, cutting down on waste AND reduces annual litter use by over 45%. Odourlock is 99.9% dust-free, which is better for your and your cat's respiratory systems. Leaves no tracking, so your home will stay clean all the time. Made with 100% pure, natural clay, recognized worldwide for its high quality. Satisfaction guaranteed. Unparalleled 40-day odour control, excellent absorption rate, amazingly low dust, virtually no tracking, gentle and comfortable for your cat, ultra-fast clumping so it is easy to scoop and clean.