Smell Less. Clean Less. Buy Less.* *As compared to the leading U.S. brand and based on third-party testing. Original Unscented With outstanding odor control and tight clumping ability, this formula is ideal for homes with 1 or 2 cats. Use Less & Get More How Long Does One Bag Last? 2 cats = 33+ Days 3 cats = 22+ Days 4 cats = 16+ Days Calculated based on average size cats. Results may vary. The Long-Lasting Power of Corn Why settle for clay? Worlds Best Cat Litter? compresses corn into super-absorbent granules that trap odor and simplify cleanup with quick-clumping action. The result is a long-lasting solution that allows you to smell less, clean less and buy less! Worlds Best Cat Litter? Original Unscented, 15 lb