Precious Cat Dr. Elsey's Ultra Scoopable Multi-Cat Cat LitterA 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. Ultra is perfect for multi-cat families and those cat owners with sifting or mechanical litter boxes. The Ultra Scoopable Litter has just the right texture to encourage digging and use by your cat..