99.9% Dust free. Powerful odor control. Free of fragrances & dyes. America's no. 1 litter brand based on sales. Backed by 70 years of litter expertise. Our history began when Ed Lowe invented litter in 1947, and reinventing litter has been our focus ever since. Combining our liter expertise with everything we learn from you, we're proud to keep growing our innovative portfolio of litter products. Purina - Your pet, our passion. The Purina Promise. Pets are our passion. Safety is our promise. Progress is our pledge. Absorbency & clumping in every Light Weight granule. Clumping power. Absorption power. Unscented. Less weight, not less litter. Same use as 20 lbs. Tidy Cats Light Weight 8.5 lbs = 20 lbs Leading Clumping Litter.