Intersand Odourlock Cat Litter neutralizes unpleasant odors for up to 40 days! Its patented technology blocks the formation of ammonia, which causes unpleasant odors. Ultra-fast clumping makes it easy to scoop and reduces the amount of litter used, cuttings down on waste AND reduces annual litter use by over 45%.Odourlock is 99.9% dust-free, which is better for you and your cats 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 odor 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.