The Naturally Fresh Multi-Cat Quick-Clumping cat litter made from walnut shells for greater absorption capacity and superior odor control. This formula produces harder clumps than pine, corn and wheat in as little as 15 minutes, making clean-up simple and mess-free. Its virtually dust-free so you and your cat can breathe easy. Also low tracking so it doesnt stick to your cats paws and stays in the box. All natural and environmentally friendly. 14 lbs.