Same number of uses as clumping clay litter: 14 lb. Tidy Cats Pure Nature = 35 lb. Clumping Clay Litter. Purina® Tidy Cats® Pure Nature™ is made with real ingredients, like cedar, pine & corn to fight even the toughest odors. Outstanding Odor Control 99.9% Natural with Natural Scents 99.9% Dust-Free Highly Absorbent; Lightweight Clumps