Purina Tidy Cats Lightweight 4-in-1 Strength Clumping Dust Free Litters Light, powerful clumps for easy scooping Powerfully absorbent 99.9% Dust free Tidy cats lightweight 4-in-1 strength is half the weight of leading clumping litter, plus controls ammonia, urine and fecal odors, and provides powerful clumping. So you get the odor-neutralizing power you want, and its easy to carry, store and use Start with a clean litter box. 1. Pour to a depth of 3(en)4 inches. 2. Remove solids daily. 3. Add more litter to maintain a depth of 3(en)4 inches. Use just like traditional clumping litter