Dr. Elsey's Precious Cat Ultra Clumping Clay Cat LitterDescription Dr. Elsey's Ultra Unscented Clumping Clay Litter is a unique formulation that combines the heavy non tracking granules with a medium grain clay. The result is an excellent clumping litter that prevents moisture from reaching the bottom of the tray while providing a clump that will not break down. Features Perfect for multi cat households and those cat parents with sifting or mechanical litter boxes Hard Clumping Superior odour control