ODOUR BUSTER™ MULTI-CAT Odour Buster™ Multi-Cat is a premium clumping cat litter made from responsibly-mined bentonite clay and our odour-eliminating ingredients. It is specially formulated for large cat families! Odour Buster™ Multi-Cat creates extra-hard clumps quickly that are easy to scoop. Because the clumps don’t break apart, the remaining litter stays clean and odour-free. It’s perfect for use in litter boxes that have lots of traffic!