Perfect Litter Premium Lightweight Clumping with Wellness Indicator - One Month Supply Perfect Litter is 4x more absorbent with patented formula that destroys odors and keeps your home clean and smelling fresh Wellness Indicator  Exclusive patented technology changes colors based on pH levels to indicate changes in your pets health Hypo-allergenic and contains no fragrances Premium lightweight clumping formula is 70% lighter making it easier to refill litter boxes and store Safe for the environment and the whole family (98% all natural ingredients that do not harm the environment and are safe for cats, people, and our planet)