10 day odor control with Ammonia Block technology and the power of Febreze in this cat litter odor eliminator deliver 10 days of cat litter box odor control guaranteed. Fresh Step Clumping Cat Litter quickly absorbs liquid, ensuring a dry and clean litter box environment for your cat's comfort. Fresh Step ClumpLock technology locks in liquid and odor on contact and causes immediate kitty litter clumping to make scooping easy and prevent crumbles from being left behind