Dr Elsey's Precious Cat Ultra Unscented Cat Litter is a unique formulation made with medium-grain clay, making it 99.9% dust free. It's an excellent clumping litter that prevents moisture from reaching the bottom of the tray while providing a clump that will not break down. This cat litter is perfect for multi-cat households and those cat parents with sifting or mechanical litter boxes. With its superior odor control, you can be sure your home will always smell fresh and clean.