World's Best Cat Litter, Clumping, 8-Pound 8-lb bag of powerful, concentrated formula traps odors and forms tight clumps on contact. No more nasty ammonia smell and clean up is a breeze All-natural compressed corn formula has no silica dust, so you and your pet can breathe easy Environmentally friendly: flushable formula is safe for septic and sewer systems Quickly forms small, tight, easy to scoop clumps that result in less litter waste. A little goes a long way