Pure Nature Pets Happy Cat Kitty Litter, 25-Pound Tired of scooping clumped litter? clumping technology was introduced in the 1980s to combat odors; Why do the work for your litter by removing odors Happy cat kitty litter reduced the need to scoop by 2/3, meaning less time and mess when cleaning up after your feline 100% natural Clinoptilolite zeolite Organic & all-natural; processed and produced in the USA