World's Best Cat Litter Advanced Zero Mess Cat Litter, 12 lbMake cleanup faster and easier than ever with the multiple cat strength litter that delivers 2x better clumping and more odor control, so you get less mess with less wasted litter. We took the concentrated power of corn and combined it with a special blend of Super Absorbent plant fibers that quickly trap liquids in tight clumps, so you don't have to chisel and scrape the box. More powerful odor control Better Clumping Flushable* septic safe