Integrity Natural Cat Litter Clumping Clay 40 lb. bag. Improved litter is cleaner, less dusty and forms stronger clumps. Made of 100% Wyoming sodium bentonite clay, no fillers. Excellent odor control. No fragrances, dyes or chemicals makes it great for sensitive cats and people. After the clay is recovered, the land is replanted, protecting water quality and creating spaces for wildlife, recreation and farming. Same great price.