PrettyLitter's formula makes it easier for you to use and clean your litter box. Its highly absorbent crystals do not clump, but instead absorbs moisture, traps all odor, and eliminates the urine. That means less work, no odor and less mess. Only scoop the poop! All cats are notorious for hiding any illness, so it's often hard to tell if they are sick or in pain. PrettyLitter makes it easy for you to know if your cat is experiencing a health issue before urgent medical care is needed, saving you money, stress and potentially your cat's life. PrettyLitter's revolutionary formula means a single 4-pound bag lasts you an entire month. Unlike clumping litter, PrettyLitter absorbs and then eliminates moisture which means you do not need to keep replenishing your litter throughout the month.